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Mencia G, Algar S, Lozano-Cruz T, Muñoz-Fernández MÁ, Gillies ER, Cano J, Valiente M, Gómez R. Carbosilane Dendritic Amphiphiles from Cholesterol or Vitamin E for Micelle Formation. Pharmaceutics 2024; 16:451. [PMID: 38675112 PMCID: PMC11053416 DOI: 10.3390/pharmaceutics16040451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/04/2024] [Accepted: 03/08/2024] [Indexed: 04/28/2024] Open
Abstract
Cationic dendritic amphiphiles were prepared through the linkage of interesting hydrophobic molecules such as cholesterol or vitamin E to the focal point of carbosilane dendrons. These new dendritic systems self-assembled in saline, producing micellar aggregates with hydrodynamic diameters ranging from 6.5 to 9.2 nm, and critical micelle concentrations of approximately 5 and 10 μM for second- and third-generation systems, respectively. The assemblies were able to encapsulate drugs of different charges (anionic, neutral, and cationic). Surprisingly, a 92% encapsulation efficiency for diclofenac was achieved in micelles prepared from second-generation dendrons. Toxicity measurements on peripheral blood mononuclear cells indicated different behavior depending on the generation, corresponding to the micellar regime. In contrast to the third-generation system, the second-generation system was non-toxic up to 20 μM, opening a window for its use in a micellar regimen, thereby operating as a drug delivery system for different biomedical applications.
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Affiliation(s)
- Gabriel Mencia
- Department of Organic and Inorganic Chemistry, Research Institute in Chemistry “Andrés M. Del Río” (IQAR), University of Alcalá, 28805 Madrid, Spain; (G.M.); (S.A.); (T.L.-C.); (J.C.)
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain;
- Ramón y Cajal Health Research Institute (IRYCIS), 28034 Madrid, Spain
| | - Sergio Algar
- Department of Organic and Inorganic Chemistry, Research Institute in Chemistry “Andrés M. Del Río” (IQAR), University of Alcalá, 28805 Madrid, Spain; (G.M.); (S.A.); (T.L.-C.); (J.C.)
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain;
| | - Tania Lozano-Cruz
- Department of Organic and Inorganic Chemistry, Research Institute in Chemistry “Andrés M. Del Río” (IQAR), University of Alcalá, 28805 Madrid, Spain; (G.M.); (S.A.); (T.L.-C.); (J.C.)
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain;
- Ramón y Cajal Health Research Institute (IRYCIS), 28034 Madrid, Spain
| | - Mª Ángeles Muñoz-Fernández
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain;
- Laboratory Platform (Immunology), General Universitary Hospital Gregorio Marañón (HGUGM), 28007 Madrid, Spain
- Spanish HIV HGM BioBank, Health Research Institute Gregorio Marañón (HGUGM), 28007 Madrid, Spain
| | - Elizabeth R. Gillies
- Department of Chemistry and Chemical and Biochemical Engineering, School of Biomedical Engineering, University of Western Ontario, London, ON N6G1Z1, Canada;
| | - Jesús Cano
- Department of Organic and Inorganic Chemistry, Research Institute in Chemistry “Andrés M. Del Río” (IQAR), University of Alcalá, 28805 Madrid, Spain; (G.M.); (S.A.); (T.L.-C.); (J.C.)
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain;
- Ramón y Cajal Health Research Institute (IRYCIS), 28034 Madrid, Spain
| | - Mercedes Valiente
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Research Institute in Chemistry “Andrés M. Del Río” (IQAR), University of Alcalá, 28805 Madrid, Spain
| | - Rafael Gómez
- Department of Organic and Inorganic Chemistry, Research Institute in Chemistry “Andrés M. Del Río” (IQAR), University of Alcalá, 28805 Madrid, Spain; (G.M.); (S.A.); (T.L.-C.); (J.C.)
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain;
- Ramón y Cajal Health Research Institute (IRYCIS), 28034 Madrid, Spain
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Liu S, Xia Y, Ji F. Advances in macrophage-targeting nanoparticles for the diagnosis and treatment of inflammatory bowel disease. Zhejiang Da Xue Xue Bao Yi Xue Ban 2023; 52:785-794. [PMID: 37986666 PMCID: PMC10764192 DOI: 10.3724/zdxbyxb-2023-0289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 09/20/2023] [Indexed: 11/22/2023]
Abstract
The pathogenesis of inflammatory bowel disease (IBD) is not fully elucidated. However, it has been considered that inflammatory macrophages may be involved in the imbalance of the intestinal mucosal immunity to regulate several signaling pathways, leading to IBD progression. The ratio of M1 to M2 subtypes of activated macrophages tends to increase in the inflamed intestinal section. There are challenges in the diagnosis and treatment of IBD, such as unsatisfactory specificity of imaging findings, low drug accumulation in the intestinal lesions, unstable therapeutic efficacy, and drug-related systemic toxicity. Recently developed nanoparticles may provide a new approach for the diagnosis and treatment of IBD. Nanoparticles targeted to macrophages can be used as contrast agents to improve the imaging quality or used as a drug delivery vector to increase the therapeutic efficiency of IBD. This article reviews the research progress on macrophage-targeting nanoparticles for the diagnosis and treatment of IBD to provide a reference for further research and clinical application.
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Affiliation(s)
- Sha Liu
- Department of Anesthesiology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China.
| | - Yi Xia
- Department of Gastroenterology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Feng Ji
- Department of Gastroenterology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China.
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Zhao L, Lv Y, Zhou X, Guo Z, Li H, Guo Y, Liu T, Tu L, Zhu L, Tao J, Shen G, He Y, Lei P. Secreted glucose regulated protein78 ameliorates DSS-induced mouse colitis. Front Immunol 2023; 14:986175. [PMID: 36776831 PMCID: PMC9909966 DOI: 10.3389/fimmu.2023.986175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 01/16/2023] [Indexed: 01/27/2023] Open
Abstract
The secreted form of 78-kDa glucose-regulated protein (sGRP78) has been widely reported for its property in aiding resolution of inflammatory. However, little is known on its potential in the treatment of colitis. To investigate the expression pattern and functional outcome of GRP78 in ulcerative colitis, its expression was measured in human and murine colitis samples. It was found that GRP78 was spontaneously secreted to a high level in gut, which is a physiological site of immune tolerance. During the active phase of DSS-induced colitis, the sGRP78 level was significantly reduced but rebounded quickly during resolving phase, making it a potential candidate for the treatment of colitis. In the following experiments, the administration of sGRP78 was proved to decrease susceptibility to experimental colitis, as indicated by an overall improvement of intestinal symptoms, restoration of TJ integrity, decreased infiltration of immune cells and impaired production of inflammatory cytokines. And specific cleavage of endogenous sGRP78 could aggravate DSS colitis. Adoptive transfer of sGRP78-conditioned BMDMs reduced inflammation in the gut. We linked sGRP78 treatment with altered macrophage biology and skewed macrophage polarization by inhibiting the TLR4-dependent MAP-kinases and NF-κB pathways. Based on these studies, as a naturally occurring immunomodulatory molecule, sGRP78 might be an attractive novel therapeutic agent for acute intestinal inflammation.
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Affiliation(s)
- Liang Zhao
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China,Department of Nuclear Medicine and PET Center, Zhongnan Hospital of Wuhan University, Wuhan, China,Department of Dermatology, Affiliated Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yibing Lv
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoqi Zhou
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zilong Guo
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Heli Li
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yanyan Guo
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tao Liu
- Department of Gastroenterology, Affiliated Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lei Tu
- Department of Cancer Center, Affiliated Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Liangru Zhu
- Department of Cancer Center, Affiliated Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Juan Tao
- Department of Dermatology, Affiliated Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Guanxin Shen
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yong He
- Department of Nuclear Medicine and PET Center, Zhongnan Hospital of Wuhan University, Wuhan, China,*Correspondence: Ping Lei, ; Yong He,
| | - Ping Lei
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China,*Correspondence: Ping Lei, ; Yong He,
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Gorzkiewicz M, Marcinkowska M, Studzian M, Karwaciak I, Pulaski L, Klajnert-Maculewicz B. Mesalazine-PAMAM Nanoparticles for Transporter-Independent Intracellular Drug Delivery: Cellular Uptake and Anti-Inflammatory Activity. Int J Nanomedicine 2023; 18:2109-2126. [PMID: 37122501 PMCID: PMC10146117 DOI: 10.2147/ijn.s390763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 03/30/2023] [Indexed: 05/02/2023] Open
Abstract
Background Mesalazine is one of the main drugs used to treat inflammatory bowel diseases. However, its applicability is limited by its rapid inactivation and removal from the organism, as well as the need for its membrane transporter-dependent cellular uptake to exert therapeutic effect. The present study involved the development of an innovative nanocarrier, based on poly(amidoamine) (PAMAM) dendrimer of the 4th generation, to obtain higher concentrations of the drug in the intestinal epithelial cells, thus increasing its anti-inflammatory potential. The work involved synthesis and in vitro characterization of covalent PAMAM-mesalazine conjugate with succinic linker. Results PAMAM-mesalazine conjugate was synthesized and characterized by 1H NMR, 13C NMR, FTIR and MALDI-TOF MS. This allowed to confirm the purity of the obtained compound and intermediates. Based on the analyses, it was found that ~45 drug molecules were successfully attached to one molecule of PAMAM dendrimer. The conjugate was then characterized in terms of hydrodynamic diameter, zeta potential, spectral properties, drug release from the carrier, as well as cellular uptake and cytotoxicity in two in vitro models of gastrointestinal epithelium (CaCo-2 and HT-29 human cell lines). Analyzing cellular parameters related to the specific mechanism of action of mesalazine (inhibition of NF-κB signaling, decrease in interleukin and prostaglandin synthesis, and ROS scavenging), we showed that such a dendrimer-based carrier may enhance cellular uptake of the drug, which translated into its improved anti-inflammatory efficacy. Conclusion The use of PAMAM macromolecule as a carrier for mesalazine increases the bioavailability of the drug, ensuring enhanced cellular uptake and bypassing the need to utilize mesalazine-specific membrane transporters. All these characteristics translate into an improved anti-inflammatory activity of mesalazine in vitro. In conjunction with appropriately designed in vivo studies, such a compound may prove to be a promising alternative to the therapeutics currently used in inflammatory bowel diseases.
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Affiliation(s)
- Michal Gorzkiewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
- Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- Correspondence: Michal Gorzkiewicz, Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska Street, Lodz, 90-236, Poland, Tel +48 42 635 41 47, Email
| | - Monika Marcinkowska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Maciej Studzian
- Department of Oncobiology and Epigenetics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
- Laboratory of Transcriptional Regulation, Institute of Medical Biology PAS, Lodz, Poland
| | - Iwona Karwaciak
- Laboratory of Transcriptional Regulation, Institute of Medical Biology PAS, Lodz, Poland
- Laboratory of Epigenetics, Institute of Medical Biology PAS, Lodz, Poland
| | - Lukasz Pulaski
- Department of Oncobiology and Epigenetics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
- Laboratory of Transcriptional Regulation, Institute of Medical Biology PAS, Lodz, Poland
| | - Barbara Klajnert-Maculewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
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Huang W, Wang L, Zou Y, Ding X, Geng X, Li J, Zhao H, Qi R, Li S. Preparation of gastrodin-modified dendrimer-entrapped gold nanoparticles as a drug delivery system for cerebral ischemia-reperfusion injury. Brain Behav 2022; 12:e2810. [PMID: 36408880 PMCID: PMC9759136 DOI: 10.1002/brb3.2810] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 03/29/2022] [Accepted: 04/12/2022] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE This study sought to evaluate the feasibility of multifunctional gastrodin (GAS)-containing nano-drug carrier system against cerebral ischemia-reperfusion injury (CIRI). METHODS The drug-loaded nanocomposite (Au-G5.NHAc-PS/GAS) with certain encapsulation efficiency (EE) was prepared by physical adsorption method using different proportions of GAS and drug-carrying system (Au-G5.NHAc-PS). High-performance liquid chromatography was used to determine the drug loading and EE. Cultured rat astrocytes and hypothalamic neurons were assigned into four groups: PBS, Au-G5.NHAc-PS, Au-G5.NHAc-PS/GAS, and GAS. CCK-8 assay, flow cytometry, and quantitative real-time PCR were performed to examine the cell viability, apoptosis, and the expression of tumor necrosis factor-α (TNF-α), IL-1β, and IL-6 in the astrocytes and hypothalamic neurons, respectively. Cellular uptake of GAS and Au-G5.NHAc-PS/GAS was analyzed by using Hoechst 33342 staining. The animal model with focal cerebral ischemia was generated by middle cerebral artery occlusion (MCAO) in healthy male Sprague Dawley (SD) rats, and pathological changes of brain tissue and major organs in the rats were identified by hematoxylin and eosin (HE) staining. Apoptosis in rat astrocytes and hypothalamic neurons was detected by TUNEL staining and flow cytometry. RESULTS Au-G5.NHAc-PS had a spherical shape with a uniform size of 157.3 nm. Among the nanoparticles, Au-G5.NHAc-PS/GAS with an EE of 70.3% displayed the best release delay effect. Moreover, we observed that in vitro cytotoxicity and cellular uptake of Au-G5.NHAc-PS/GAS were higher than those of GAS, whereas the expression of TNF-α, IL-1β, and IL-6 was significantly downregulated in Au-G5.NHAc-PS/GAS group as compared to G5.NHAc-PS group. Notably, HE staining revealed that although Au-G5.NHAc-PS/GAS had no toxic and side effects on the main organs of rats, it alleviated the damage of brain tissue in the MCAO rats. Besides, Au-G5.NHAc/GAS markedly reduced MCAO-induced apoptosis. CONCLUSION Au-G5.NHAc-PS showed favorable surface morphology, sustained drug release ability, no measurable toxicity, and good biocompatibility, indicating that GAS exerts anti-inflammatory and antiapoptotic effects on CIRI.
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Affiliation(s)
- Wenqiang Huang
- Department of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Lanlin Wang
- Department of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yanghong Zou
- Department of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xiangqian Ding
- Department of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xin Geng
- Department of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jinghui Li
- Department of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Hexiang Zhao
- Department of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Renli Qi
- Department of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Shipeng Li
- Department of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, China
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Synthesis and Activity of Ionic Antioxidant-Functionalized PAMAMs and PPIs Dendrimers. Polymers (Basel) 2022; 14:polym14173513. [PMID: 36080588 PMCID: PMC9459880 DOI: 10.3390/polym14173513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/17/2022] [Accepted: 08/23/2022] [Indexed: 11/17/2022] Open
Abstract
For this study, new dendrimers were prepared from poly(propylene imine) (PPI) and polyamidoamine (PAMAM) dendrimers using an efficient acid-base reaction with various phenolic acids. The syntheses were also optimized in both microwave and microfluidic reactors. These ionic and hydrophilic dendrimers were fully characterized and showed excellent antioxidant properties. Their cytotoxic properties have been also determined in the case of fibroblast dermal cells.
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The potential therapeutic effects of hydroxypropyl cellulose on acute murine colitis induced by DSS. Carbohydr Polym 2022; 289:119430. [DOI: 10.1016/j.carbpol.2022.119430] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 03/20/2022] [Accepted: 03/28/2022] [Indexed: 01/08/2023]
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Li C, Li J, Fan Y, Wang D, Zhan M, Shen M, Shi X. Co-delivery of Dexamethasone and a MicroRNA-155 Inhibitor Using Dendrimer-Entrapped Gold Nanoparticles for Acute Lung Injury Therapy. Biomacromolecules 2021; 22:5108-5117. [PMID: 34756016 DOI: 10.1021/acs.biomac.1c01081] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Development of nanomedicines for effective therapy of acute lung injury (ALI), a common critical respiratory failure syndrome, remains to be challenging. We report here a unique design of a functional nanoplatform based on generation 5 (G5) poly(amidoamine) dendrimer-entrapped gold nanoparticles (Au DENPs) to co-deliver dexamethasone (Dex) and a microRNA-155 inhibitor (miR-155i) for combination chemotherapy and gene therapy of ALI. In this study, we synthesized Au DENPs with 10 Dex moieties attached per G5 dendrimer and an Au core diameter of 2.1 nm and used them to compress miR-155i. The generated polyplexes own a positive zeta potential (16-26 mV) and a small hydrodynamic diameter (175-230 nm) and display desired cytocompatibility and efficient miR-155i delivery to lipopolysaccharide (LPS)-activated alveolar macrophages, thus upregulating the suppressor of cytokine signaling 1 and IL-10 expression and downregulating the pro-inflammatory cytokines (TNF-α, IL-1β, and IL-6). Likewise, as a synthetic glucocorticoid with a potent anti-inflammatory property, the attached Dex on the surface of Au DENPs could inhibit pro-inflammatory cytokine secretion by down-regulating cyclooxygenase-2 expression in the LPS-activated alveolar macrophages. The integration of Dex and miR-155i within one nanoformulation enables superior downregulation of pro-inflammatory cytokines for successful repair of damaged lung tissues in an ALI model, as demonstrated by histological examinations and pro-inflammatory cytokine downregulation in ALI lesion at the gene and protein levels. Such a combined chemotherapy and gene therapy strategy enabled by dendrimer nanotechnology may hold great promise to treat other types of inflammatory diseases.
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Affiliation(s)
- Changsheng Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Jin Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Yu Fan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Dayuan Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Mengsi Zhan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Mingwu Shen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
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Wang L, Liao Y, Yang R, Zhu Z, Zhang L, Wu Z, Sun X. An engineered probiotic secreting Sj16 ameliorates colitis via Ruminococcaceae/butyrate/retinoic acid axis. Bioeng Transl Med 2021; 6:e10219. [PMID: 34589596 PMCID: PMC8459592 DOI: 10.1002/btm2.10219] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/14/2021] [Accepted: 03/18/2021] [Indexed: 12/29/2022] Open
Abstract
Most inflammatory bowel disease (IBD) patients are unable to maintain a lifelong remission. Developing a novel therapeutic strategy is urgently needed. In this study, we adopt a new strategy to attenuate colitis using the Escherichia coli Nissle 1917 probiotic strain to express a schistosome immunoregulatory protein (Sj16) in the gastrointestinal tract. The genetically engineered Nissle 1917 (EcN-Sj16) highly expressed Sj16 in the gastrointestinal tracts of dextran sulfate sodium-induced colitis mice and significantly attenuated the clinical activity of colitis mice. Mechanistically, EcN-Sj16 increased the intestinal microbiota diversity and selectively promoted the growth of Ruminococcaceae and therefore enhanced the butyrate production. Butyrate induced the expression of retinoic acid, which further attenuated the clinical activity of colitis mice by increasing Treg cells and decreasing Th17. Strikingly, retinoic acid inhibitor inhibited the therapeutic effects of EcN-Sj16 in colitis mice. These findings suggest that EcN-Sj16 represents a novel engineered probiotic that may be used to treat IBD.
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Affiliation(s)
- Lifu Wang
- Department of Parasitology, Zhongshan School of MedicineSun Yat‐sen UniversityGuangzhouChina
- Key Laboratory of Tropical Disease ControlMinistry of Education, Sun Yat‐sen UniversityGuangzhouChina
- Provincial Engineering Technology Research Center for Biological Vector ControlGuangzhouChina
| | - Yao Liao
- Department of Parasitology, Zhongshan School of MedicineSun Yat‐sen UniversityGuangzhouChina
- Key Laboratory of Tropical Disease ControlMinistry of Education, Sun Yat‐sen UniversityGuangzhouChina
- Provincial Engineering Technology Research Center for Biological Vector ControlGuangzhouChina
| | - Ruibing Yang
- Department of Parasitology, Zhongshan School of MedicineSun Yat‐sen UniversityGuangzhouChina
- Key Laboratory of Tropical Disease ControlMinistry of Education, Sun Yat‐sen UniversityGuangzhouChina
- Provincial Engineering Technology Research Center for Biological Vector ControlGuangzhouChina
| | - Zifeng Zhu
- Department of Parasitology, Zhongshan School of MedicineSun Yat‐sen UniversityGuangzhouChina
- Key Laboratory of Tropical Disease ControlMinistry of Education, Sun Yat‐sen UniversityGuangzhouChina
- Provincial Engineering Technology Research Center for Biological Vector ControlGuangzhouChina
| | - Lichao Zhang
- Department of Parasitology, Zhongshan School of MedicineSun Yat‐sen UniversityGuangzhouChina
- Key Laboratory of Tropical Disease ControlMinistry of Education, Sun Yat‐sen UniversityGuangzhouChina
- Provincial Engineering Technology Research Center for Biological Vector ControlGuangzhouChina
| | - Zhongdao Wu
- Department of Parasitology, Zhongshan School of MedicineSun Yat‐sen UniversityGuangzhouChina
- Key Laboratory of Tropical Disease ControlMinistry of Education, Sun Yat‐sen UniversityGuangzhouChina
- Provincial Engineering Technology Research Center for Biological Vector ControlGuangzhouChina
| | - Xi Sun
- Department of Parasitology, Zhongshan School of MedicineSun Yat‐sen UniversityGuangzhouChina
- Key Laboratory of Tropical Disease ControlMinistry of Education, Sun Yat‐sen UniversityGuangzhouChina
- Provincial Engineering Technology Research Center for Biological Vector ControlGuangzhouChina
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Liu P, Gao C, Chen H, Vong CT, Wu X, Tang X, Wang S, Wang Y. Receptor-mediated targeted drug delivery systems for treatment of inflammatory bowel disease: Opportunities and emerging strategies. Acta Pharm Sin B 2021; 11:2798-2818. [PMID: 34589398 PMCID: PMC8463263 DOI: 10.1016/j.apsb.2020.11.003] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/01/2020] [Accepted: 10/14/2020] [Indexed: 02/08/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic intestinal disease with painful clinical manifestations and high risks of cancerization. With no curative therapy for IBD at present, the development of effective therapeutics is highly advocated. Drug delivery systems have been extensively studied to transmit therapeutics to inflamed colon sites through the enhanced permeability and retention (EPR) effect caused by the inflammation. However, the drug still could not achieve effective concentration value that merely utilized on EPR effect and display better therapeutic efficacy in the inflamed region because of nontargeted drug release. Substantial researches have shown that some specific receptors and cell adhesion molecules highly expresses on the surface of colonic endothelial and/or immune cells when IBD occurs, ligand-modified drug delivery systems targeting such receptors and cell adhesion molecules can specifically deliver drug into inflamed sites and obtain great curative effects. This review introduces the overexpressed receptors and cell adhesion molecules in inflamed colon sites and retrospects the drug delivery systems functionalized by related ligands. Finally, challenges and future directions in this field are presented to advance the development of the receptor-mediated targeted drug delivery systems for the therapy of IBD.
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Key Words
- ACQ, aggregation-caused quenching
- ADR, adverse drug reaction
- AIE, aggregation-induced emission
- Active target
- BSA, bovine serum albumin
- CAM, cell adhesion molecule
- CD, Crohn's disease
- CRD, cysteine-rich domain
- CS, chondroitin sulfate
- CT, computed tomography
- CTLD, c-type lectin-like domain
- Cell adhesion molecule
- Crohn's disease
- DCs, dendritic cells
- DSS, dextran sulfate sodium salt
- Drug delivery
- EGF, epidermal growth factor
- EPR, enhanced permeability and retention
- FNII, fibronectin type II domain
- FR, folate receptor
- FRET, fluorescence resonance energy transfer
- GIT, gastrointestinal tract
- HA, hyaluronic acid
- HUVEC, human umbilical vein endothelial cells
- IBD, inflammatory bowel disease
- ICAM, intercellular adhesion molecule
- Inflammatory bowel disease
- LMWC, low molecular weight chitosan
- LPS, lipopolysaccharide
- MAP4K4, mitogen-activated protein kinase kinase kinase kinase 4
- MGL, macrophage galactose lectin
- MPO, myeloperoxidase
- MPS, mononuclear phagocyte system
- MR, mannose receptor
- MRI, magnetic resonance imaging
- PAMAM, poly(amidoamine)
- PEI, polyethylenimine
- PSGL-1, P-selectin glycoprotein ligand-1
- PepT1, peptide transporter 1
- QDs, quantum dots
- RES, reticuloendothelial system
- Receptor-mediated target
- Targeted therapy
- TfR, transferrin receptor
- UC, ulcerative colitis
- Ulcerative colitis
- VCAM, vascular cell adhesion molecule
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11
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Vitamin E succinate with multiple functions: A versatile agent in nanomedicine-based cancer therapy and its delivery strategies. Int J Pharm 2021; 600:120457. [PMID: 33676991 DOI: 10.1016/j.ijpharm.2021.120457] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 02/15/2021] [Accepted: 03/02/2021] [Indexed: 11/20/2022]
Abstract
Vitamin E succinate (VES), a succinic acid ester of vitamin E, is one of the most effective anticancer compounds of the vitamin E family. VES can inhibit tumor growth by multiple pathways mainly involve tumor proliferation inhibition, apoptosis induction, and metastasis prevention. More importantly, the mitochondrial targeting and damaging property of VES endows it with great potential in exhibiting synergetic effect with conventional chemotherapeutic drugs and overcoming multidrug resistance (MDR). Given the lipophilicity of VES that hinders its bioavailability and therapeutic activity, nanotechnology with multiple advantages has been widely explored to deliver VES and opened up new avenues for its in vivo application. This review aims to introduce the anticancer mechanisms of VES and summarize its delivery strategies using nano-drug delivery systems. Specifically, VES-based combination therapy for synergetic anticancer effect, MDR-reversal, and oral chemotherapy improvement are highlighted. Finally, the challenges and perspectives are discussed.
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12
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Li J, Chen L, Xu X, Fan Y, Xue X, Shen M, Shi X. Targeted Combination of Antioxidative and Anti-Inflammatory Therapy of Rheumatoid Arthritis using Multifunctional Dendrimer-Entrapped Gold Nanoparticles as a Platform. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2005661. [PMID: 33205596 DOI: 10.1002/smll.202005661] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/20/2020] [Indexed: 06/11/2023]
Abstract
Abundant reactive oxygen species and tumor necrosis factor-α (TNF-α) cytokine supply of M1-type macrophages boost rheumatoid arthritis (RA) pathological process. For efficient RA therapy, here a multifunctional nanoplatform is presented based on generation 5 (G5) poly(amidoamine) dendrimer-entrapped gold nanoparticles (Au DENPs) to achieve co-delivery of antioxidant alpha-tocopheryl succinate (α-TOS) and anti-inflammatory anti-TNF-α siRNA to macrophage cells. G5 dendrimers with amine termini are sequentially functionalized with 1,3-propane sultone (1,3-PS), α-TOS through a polyethylene glycol (PEG) spacer, and PEGylated folic acid (FA), and subsequently entrapped with Au NPs. The generated functional Au DENPs exhibit desired cytocompatibility, zwitterion-rendered antifouling property, and FA-mediated targeting specificity, enabling serum-enhanced siRNA delivery to M1-type macrophage cells. Meanwhile, the attached α-TOS affords enhanced oxidation resistance of macrophage cells. In vivo investigation shows that the treatment of a collagen-induced arthritis mouse model using α-TOS-modified Au DENPs/TNF-α siRNA polyplexes can achieve excellent combination therapy effect in inflammatory cytokines downregulation of RA lesion and bone erosions. The therapeutic efficacy is also supported by 3D micro-computed tomography analysis and TNF-α cytokine reduction of RA lesion joints in the mRNA, protein, and histology levels. The created multifunctional nanoplatform may be employed in antioxidative and anti-inflammatory combination therapy of RA.
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Affiliation(s)
- Jin Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-Dimension Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
| | - Liang Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-Dimension Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
| | - Xiaoying Xu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-Dimension Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
| | - Yu Fan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-Dimension Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
| | - Xue Xue
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-Dimension Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
| | - Mingwu Shen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-Dimension Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-Dimension Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
- CQM-Centro de Quimica da Madeira, Universidade da Madeira, Funchal, 9020-105, Portugal
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13
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Nanoparticle-based therapeutics of inflammatory bowel diseases: a narrative review of the current state and prospects. JOURNAL OF BIO-X RESEARCH 2020. [DOI: 10.1097/jbr.0000000000000078] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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14
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Zhang J, Zhao Y, Hou T, Zeng H, Kalambhe D, Wang B, Shen X, Huang Y. Macrophage-based nanotherapeutic strategies in ulcerative colitis. J Control Release 2020; 320:363-380. [DOI: 10.1016/j.jconrel.2020.01.047] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Revised: 01/11/2020] [Accepted: 01/26/2020] [Indexed: 12/21/2022]
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15
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Sun Y, Duan B, Chen H, Xu X. A Novel Strategy for Treating Inflammatory Bowel Disease by Targeting Delivery of Methotrexate through Glucan Particles. Adv Healthc Mater 2020; 9:e1901805. [PMID: 32092235 DOI: 10.1002/adhm.201901805] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/27/2020] [Indexed: 12/24/2022]
Abstract
Therapy of inflammatory bowel disease (IBD) has been a difficult task in the medical field. There is a great clinical need for more effective treatments for IBD. Herein, a targeted oral delivery system of yeast glucan particles (YGPs) carrying a clinically used anti-inflammatory drug methotrexate (MTX) to the inflamed sites in IBD mice for therapy is reported. In the findings, MTX is effectively loaded into YGPs through re-precipitation followed by gelation reaction of alginate to obtain the composite YGPs/MTX, which are internalized into RAW264.7 macrophage cells through dectin-1 and CR3 receptors. Furthermore, YGPs/MTX can suppress the proliferation of macrophage cells efficiently, leading to down-regulation of pro-inflammatory cytokines induced by lipopolysaccharides. Additionally, YGPs accumulate in the inflammation site of colitis mice, enabling YGPs/MTX to target the inflammatory site, significantly improve the efficacy of MTX, and reduce the cytotoxicity of MTX. Therefore, the YGPs-based drug delivery system provides a new strategy for MTX application in the clinical treatment of IBD.
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Affiliation(s)
- Ying Sun
- College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
| | - Bingchao Duan
- College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
| | - Huanhuan Chen
- College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
| | - Xiaojuan Xu
- College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
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16
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Duan B, Li M, Sun Y, Zou S, Xu X. Orally Delivered Antisense Oligodeoxyribonucleotides of TNF-α via Polysaccharide-Based Nanocomposites Targeting Intestinal Inflammation. Adv Healthc Mater 2019; 8:e1801389. [PMID: 30714345 DOI: 10.1002/adhm.201801389] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 01/09/2019] [Indexed: 12/27/2022]
Abstract
Tumor necrosis factor alpha (TNF-α) is usually regarded as a potential target for inflammatory bowel disease therapy. Herein, a promising strategy for effective delivery of phosphorothioated antisense oligodeoxyribonucleotide of TNF-α (PS-ATNF-α), targeting the intestinal inflammation based on the interaction of the single chain of triple helical β-glucan (s-LNT) with poly-deoxyadenylic acid [poly(dA)], and the colon-specific degradation of chitosan-alginate (CA) hydrogel, is reported. The target gene of PS-ATNF-α, with a poly(dA) tail through a disulfide bond (-SS-), interacts with s-LNT to form a rod-like nanocomposite of s-LNT/poly(dA)-SS-PS-ATNF-α, which significantly inhibits lipopolysaccharide (LPS)-induced TNF-α at the protein level by 38.2% and mRNA level by 48.9% in RAW264.7 macrophages. The nanocomposites carried by the CA hydrogel with the loading amount of 83.5% are then orally administered and specifically released to the inflamed intestine, followed by internalization into intestinal cells such as macrophages, to reduce TNF-α production by 36.4% and dextran sulfate sodium-induced inflammation by decreasing myeloperoxidase and malondialdehyde. This study defines a new strategy for the oral delivery of antisense oligonucleotides to attenuate inflammatory response, demonstrating a notable potential for clinical applications in intestine-inflammation-targeted therapy.
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Affiliation(s)
- Bingchao Duan
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Mengxia Li
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Ying Sun
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Siwei Zou
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Xiaojuan Xu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
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17
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Bhatt H, Kiran Rompicharla SV, Ghosh B, Biswas S. α-Tocopherol Succinate-Anchored PEGylated Poly(amidoamine) Dendrimer for the Delivery of Paclitaxel: Assessment of in Vitro and in Vivo Therapeutic Efficacy. Mol Pharm 2019; 16:1541-1554. [DOI: 10.1021/acs.molpharmaceut.8b01232] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Himanshu Bhatt
- Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Medchal, Hyderabad, Telangana 500078, India
| | - Sri Vishnu Kiran Rompicharla
- Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Medchal, Hyderabad, Telangana 500078, India
| | - Balaram Ghosh
- Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Medchal, Hyderabad, Telangana 500078, India
| | - Swati Biswas
- Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Medchal, Hyderabad, Telangana 500078, India
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18
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Liu C, Gao H, Zhao Z, Rostami I, Wang C, Zhu L, Yang Y. Improved tumor targeting and penetration by a dual-functional poly(amidoamine) dendrimer for the therapy of triple-negative breast cancer. J Mater Chem B 2019. [DOI: 10.1039/c9tb00433e] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A dual-functional drug delivery system based on the conjugation of PAMAM dendrimer with EBP-1 and TAT peptide was established for the therapy of triple-negative breast cancer.
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Affiliation(s)
- Changliang Liu
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology
- CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- National Center for Nanoscience and Technology
- Beijing 100190
| | - Houqian Gao
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology
- CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- National Center for Nanoscience and Technology
- Beijing 100190
| | - Zijian Zhao
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology
- CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- National Center for Nanoscience and Technology
- Beijing 100190
| | - Iman Rostami
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology
- CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- National Center for Nanoscience and Technology
- Beijing 100190
| | - Chen Wang
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology
- CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- National Center for Nanoscience and Technology
- Beijing 100190
| | - Ling Zhu
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology
- CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- National Center for Nanoscience and Technology
- Beijing 100190
| | - Yanlian Yang
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology
- CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- National Center for Nanoscience and Technology
- Beijing 100190
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19
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Peterson E, Joseph C, Peterson H, Bouwman R, Tang S, Cannon J, Sinniah K, Choi SK. Measuring the Adhesion Forces for the Multivalent Binding of Vancomycin-Conjugated Dendrimer to Bacterial Cell-Wall Peptide. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:7135-7146. [PMID: 29792710 DOI: 10.1021/acs.langmuir.8b01137] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Multivalent ligand-receptor interaction provides the fundamental basis for the hypothetical notion that high binding avidity relates to the strong force of adhesion. Despite its increasing importance in the design of targeted nanoconjugates, an understanding of the physical forces underlying the multivalent interaction remains a subject of urgent investigation. In this study, we designed three vancomycin (Van)-conjugated dendrimers G5(Van) n ( n = mean valency = 0, 1, 4) for bacterial targeting with generation 5 (G5) poly(amidoamine) dendrimer as a multivalent scaffold and evaluated both their binding avidity and physical force of adhesion to a bacterial model surface by employing surface plasmon resonance (SPR) spectroscopy and atomic force microscopy. The SPR experiment for these conjugates was performed in a biosensor chip surface immobilized with a bacterial cell-wall peptide Lys-d-Ala-d-Ala. Of these, G5(Van)4 bound most tightly with a KD of 0.34 nM, which represents an increase in avidity by 2 or 3 orders of magnitude relative to a monovalent conjugate G5(Van)1 or free vancomycin, respectively. By single-molecule force spectroscopy, we measured the adhesion force between G5(Van) n and the same cell-wall peptide immobilized on the surface. The distribution of adhesion forces increased in proportion to vancomycin valency with the mean force of 134 pN at n = 4 greater than 96 pN at n = 1 at a loading rate of 5200 pN/s. In summary, our results are strongly supportive of the positive correlation between the avidity and adhesion force in the multivalent interaction of vancomycin nanoconjugates.
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Affiliation(s)
- Elizabeth Peterson
- Department of Chemistry & Biochemistry , Calvin College , Grand Rapids , Michigan 49546 , United States
| | | | - Hannah Peterson
- Department of Chemistry & Biochemistry , Calvin College , Grand Rapids , Michigan 49546 , United States
| | - Rachael Bouwman
- Department of Chemistry & Biochemistry , Calvin College , Grand Rapids , Michigan 49546 , United States
| | | | | | - Kumar Sinniah
- Department of Chemistry & Biochemistry , Calvin College , Grand Rapids , Michigan 49546 , United States
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20
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Jain SK, Tiwari A, Jain A, Verma A, Saraf S, Panda PK, Gour G. Application Potential of Polymeric Nanoconstructs for Colon-Specific Drug Delivery. ACTA ACUST UNITED AC 2018. [DOI: 10.4018/978-1-5225-4781-5.ch002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Numerous applications of colon-specific drug delivery have been found in a wide array of diseases like irritable bowel syndrome (IBS), inflammatory bowel diseases (ulcerative colitis and Crohn's disease), colorectal cancer, and diverticulitis. Drug delivery to the colon has different anatomic and pathophysiological barriers. In recent advancements, these barriers were overcome by using biodegradable polymeric nanoconstructs, which are exhibiting minimal systemic adverse effects. Various polymeric nanoconstructs (PNCs) such as nanoparticles, micelles, and dendrimers have been exploited for effective targeting to pathological sites of colon. PNCs on oral administration not only protect the bioactive from physicochemical degradation but also prevent premature leakage in the upper parts of gastrointestinal tract. The chapter summarizes various PNCs-based approaches for colon-specific drug delivery.
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21
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Janaszewska A, Gorzkiewicz M, Ficker M, Petersen JF, Paolucci V, Christensen JB, Klajnert-Maculewicz B. Pyrrolidone Modification Prevents PAMAM Dendrimers from Activation of Pro-Inflammatory Signaling Pathways in Human Monocytes. Mol Pharm 2017; 15:12-20. [DOI: 10.1021/acs.molpharmaceut.7b00515] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Anna Janaszewska
- Department
of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland
| | - Michał Gorzkiewicz
- Department
of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland
| | - Mario Ficker
- Department
of Chemistry, University of Copenhagen, Thorvaldsensvej 40, DK-1871 Frederiksberg, Denmark
| | | | - Valentina Paolucci
- Department
of Chemistry, University of Copenhagen, Thorvaldsensvej 40, DK-1871 Frederiksberg, Denmark
| | - Jørn Bolstad Christensen
- Department
of Chemistry, University of Copenhagen, Thorvaldsensvej 40, DK-1871 Frederiksberg, Denmark
| | - Barbara Klajnert-Maculewicz
- Department
of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069 Dresden, Germany
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