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Kumara BN, Velmurugan K, Ghate MV, Shambhu R, Nirmal J, Prasad KS. A promising 'single' and 'dual' drug-nanocomposite enriched contact lens for the management of glaucoma in response to the tear fluid enzyme. J Mater Chem B 2024; 12:2394-2412. [PMID: 38349383 DOI: 10.1039/d3tb02624h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Glaucoma is a neurodegenerative condition that results in the damage of retinal ganglion cells due to elevated intraocular pressure (IOP). To curtail the limitations associated with conventional treatments such as eye drops and ocular suspensions, we have developed 'single' and 'dual' drug delivery contact lenses (CLs), that is, latanoprost (LP) and latanoprost-timolol (LP-TM) deliverable CLs, in response to lysozyme (Lyz), which is abundant in the lacrimal fluid. Since chitosan (CS) can entrap more of the drug and also undergo hydrolysis in the presence of Lyz, we have employed CS for the composite preparation. The CL fabrication was performed by free radical copolymerization of poly(2-hydroxyethyl methacrylate) (pHEMA) in the presence of the drug-loaded nanocomposite with UV-curing initiators using the pre-drug loading strategy. The surface morphological, optical and mechanical investigations confirmed the presence of the drugs, ≥80% transparency, the adequate flexibility and biocompatibility of both the CLs. The in vitro release experiments showed the release of 95.86% LP from LP-CL, and 83.87% LP and 86.70% TM from LP-TM-CL in the presence of 1.5 mg mL-1 of Lyz in 72 h. In vitro biocompatibility assay against human corneal epithelial (HCE) cells and ex vivo experiments on HET-CAM confirmed that the fabricated LP-CL and LP-TM-CL are well tolerated. Moreover, in vivo safety evaluations of CLs on New Zealand white rabbit eyes suggest no sign of irritation to the ocular tissues within 72 h of observation. Hence, the study suggests that the 'single' and 'dual' drug-loaded CLs could open a new avenue to manage glaucoma by maintaining mean diurnal IOP.
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Affiliation(s)
- B N Kumara
- Nanomaterial Research Laboratory [NMRL], Smart Materials And Devices, Yenepoya Research Centre, Yenepoya [Deemed to be University], Deralakatte, Mangalore 575 018, India.
| | - K Velmurugan
- Translational Pharmaceutics Research Laboratory (TPRL), Department of Pharmacy, Birla Institute of Technology and Sciences (BITS), Pilani, Hyderabad Campus, Hyderabad, 500 078, Telangana, India.
| | - M Vivek Ghate
- Yenepoya Technology Incubator, Yenepoya [Deemed to be University], Deralakatte, Mangalore 575 018, India
| | - R Shambhu
- Department of Ophthalmology, Yenepoya Medical College, Yenepoya [Deemed to be University], Deralakatte, Mangalore, 575 018, India
| | - Jayabalan Nirmal
- Translational Pharmaceutics Research Laboratory (TPRL), Department of Pharmacy, Birla Institute of Technology and Sciences (BITS), Pilani, Hyderabad Campus, Hyderabad, 500 078, Telangana, India.
| | - K Sudhakara Prasad
- Nanomaterial Research Laboratory [NMRL], Smart Materials And Devices, Yenepoya Research Centre, Yenepoya [Deemed to be University], Deralakatte, Mangalore 575 018, India.
- Centre for Nutrition Studies, Yenepoya [Deemed to be University], Deralakatte, Mangalore 575 018, India
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Chen X, Yang Y, Mai Q, Ye G, Liu Y, Liu J. Pillar arene Se nanozyme therapeutic systems with dual drive power effectively penetrated mucus layer combined therapy acute lung injury. Biomaterials 2024; 304:122384. [PMID: 38016334 DOI: 10.1016/j.biomaterials.2023.122384] [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: 07/10/2023] [Revised: 10/09/2023] [Accepted: 11/01/2023] [Indexed: 11/30/2023]
Abstract
siRNA has demonstrated a promising paradigm for therapy of acute lung injury(ALI). However, the pulmonary mucus layer barrier powerfully hinders the therapeutic efficacy. Herein, we proposed to use dual drive power to enhance the mucus permeation of siRNA by constructing the neutral and targeted selenium nanozymes therapeutic system. The multifunctional selenium nanozymes (CWP-Se@Man) were synthesized by modifying with cationic water-soluble pillar arene (CWP) and mannose (Man). After loading CCR2-siRNA, the CWP-Se@Man reached electroneutrality that co-driven by electroneutrality and targeting, the mucus permeation capacity of CWP-Se@Man enhanced by ∼15 fold, thus effectively penetrate pulmonary mucus layer and deliver CCR2-siRNA into macrophages. Moreover, with optimizing the composition of CWP-Se@Man made of CWP (Slutsky, 2013) [5] or CWP (Ichikado et al., 2012) [6], the therapeutic system CWP (Ichikado et al., 2012) [6]-Se@Man showed better biological activities due to smaller size. In inflamed modes, the CWP-Se@Man nanotherapeutic systems loading CCR2-siRNA not only exerted pronounced anti-inflammatory effect through combining inhibit the chemotactic effect and ROS, but also effectively against ALI after blocking the circulatory effect of ROS and inflammatory cytokines. Therefore, this strategy of dual-driving force penetration mucus renders a unique approach for mediating trans-mucus nucleic acid delivery in lungs, and provide a promising treatment for the acute lung injury therapy.
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Affiliation(s)
- Xu Chen
- College of Chemistry and Materials Science, The First Affiliated Hospital of Jinan University, Guangzhou, 510632, China; Department of Rheumatology and Immunology, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
| | - Yonglan Yang
- College of Chemistry and Materials Science, The First Affiliated Hospital of Jinan University, Guangzhou, 510632, China
| | - Qiongmei Mai
- College of Chemistry and Materials Science, The First Affiliated Hospital of Jinan University, Guangzhou, 510632, China
| | - Gang Ye
- College of Chemistry and Materials Science, The First Affiliated Hospital of Jinan University, Guangzhou, 510632, China.
| | - Yanan Liu
- Shenzhen Longhua Maternity and Child Healthcare Hospital, Shenzhen, 518110, China.
| | - Jie Liu
- College of Chemistry and Materials Science, The First Affiliated Hospital of Jinan University, Guangzhou, 510632, China.
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Zhang Y, Huang M, Shao X, Zhang F, Li Z, Bai Y, Xu X, Wang P, Zhao T. Insights into Intramuscular Connective Tissue Associated with Wooden Breast Myopathy in Fast-Growing Broiler Chickens. Foods 2023; 12:2375. [PMID: 37372588 DOI: 10.3390/foods12122375] [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: 05/12/2023] [Revised: 06/08/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
Wooden breast myopathy (WBM) is a meat abnormality affecting pectoralis majors (PMs) of fast-growing broiler chickens. WBM-affected PMs exhibited varied meat qualities with increasing WBM severity. Normal PMs (NOR), mild WBM-affected PMs (MIL), moderate WBM-affected PMs (MOD), and severe WBM-affected PMs (SEV) were selected as raw materials. The structure and organization of connective tissue and fibrillar collagen were investigated through immersing with sodium hydroxide solution, Masson trichrome staining, and using an electron microscope. The mechanical strength of intramuscular connective tissue was analyzed via the shear force of samples treated with sodium hydroxide solution. The thermal property and secondary structure of connective tissue were analyzed by differential scanning calorimetry and Fourier transform infrared spectroscopy. The obtained connective tissue was dissolved in a sodium hydroxide solution for the evaluation of the physicochemical properties of proteins, including particle size, molecular weight, surface hydrophobicity, and intrinsic fluorescence. In particular, the particle size was measured using a zeta potential instrument. The molecular weight was analyzed by sodium dodecyl sulfate polyacrylamide gel electrophoresis. The surface hydrophobicity and intrinsic fluorescence were measured by spectroscopy technology. Histologically, macrophage infiltration, myodegeneration and necrosis, regeneration, fibrous connective tissue, and thickened perimysial connective tissue were observed in WBM-affected PMs, especially SEV with fibrosis, including blood vessels. Compared with NOR, WBM led to increased average diameter of the collagen fibrils in perimysial (36.61 nm of NOR to 69.73 nm of SEV) and endomysial (34.19 nm of NOR to 56.93 nm of SEV) layers. A significant increase (p < 0.05) was observed in the mechanical strength (2.05 N to 5.55 N) of fresh PMs and the thermal transition temperature (onset temperature (TO), 61.53 °C to 67.50 °C; maximum transition temperature (TM), 66.46 °C to 70.18 °C; termination temperature (TE), 77.20 °C to 80.88 °C) of connective tissue from NOR to SEV. Cooking decreased the mechanical strength, and MOD samples showed the highest mechanical strength (1.24 N, p < 0.05), followed by SEV (0.96 N), MIL (0.93 N), and NOR (0.72 N). For proteins in connective tissue, random coil (19.64% to 29.61%, p < 0.0001), particle size (p < 0.05), and surface hydrophobicity (p < 0.05) increased with the decrease in the α-helix (14.61% to 11.54%, p < 0.0001), β-sheet (45.71% to 32.80%, p < 0.0001), and intrinsic fluorescence of proteins from NOR to SEV. The molecular weights of intramuscular connective tissue proteins were in the ranges of >270 kDa, 180-270 kDa, 110-180 kDa, 95-100 kDa, and <15 kDa. Taken together, WBM resulted in thickened organization, tightly packed collagen fibrils, increased mechanical strength and thermal temperature, and increased particle size, surface hydrophobicity, and intrinsic fluorescence of proteins in connective tissue, as the WBM severity increased.
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Affiliation(s)
- Yulong Zhang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
- Jiangsu Synergetic Innovation Center of Meat Production and Processing, Nanjing 210095, China
- National Center of Meat Quality and Safety Control, Nanjing 210095, China
| | - Mingyuan Huang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
- Jiangsu Synergetic Innovation Center of Meat Production and Processing, Nanjing 210095, China
- National Center of Meat Quality and Safety Control, Nanjing 210095, China
| | - Xuefei Shao
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
- Jiangsu Synergetic Innovation Center of Meat Production and Processing, Nanjing 210095, China
- National Center of Meat Quality and Safety Control, Nanjing 210095, China
| | - Feiyu Zhang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
- Jiangsu Synergetic Innovation Center of Meat Production and Processing, Nanjing 210095, China
- National Center of Meat Quality and Safety Control, Nanjing 210095, China
| | - Zhen Li
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
- Jiangsu Synergetic Innovation Center of Meat Production and Processing, Nanjing 210095, China
- National Center of Meat Quality and Safety Control, Nanjing 210095, China
| | - Yun Bai
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
- Jiangsu Synergetic Innovation Center of Meat Production and Processing, Nanjing 210095, China
- National Center of Meat Quality and Safety Control, Nanjing 210095, China
| | - Xinglian Xu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
- Jiangsu Synergetic Innovation Center of Meat Production and Processing, Nanjing 210095, China
- National Center of Meat Quality and Safety Control, Nanjing 210095, China
| | - Peng Wang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
- Jiangsu Synergetic Innovation Center of Meat Production and Processing, Nanjing 210095, China
- National Center of Meat Quality and Safety Control, Nanjing 210095, China
| | - Tinghui Zhao
- Ninglang Animal Husbandry Work Instructing Station, Lijiang 674301, China
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Alehosseini A, Sharma P, Sheehan JJ. Application of a dairy-based model system for mathematical mapping of diffusion of salt within rennet induced micellar casein concentrate matrices. J FOOD ENG 2022. [DOI: 10.1016/j.jfoodeng.2022.111263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Parilti R, Riva R, Howdle SM, Dupont-Gillain C, Jerome C. Sulindac encapsulation and release from functional poly(HEMA) microparticles prepared in supercritical carbon dioxide. Int J Pharm 2018; 549:161-168. [PMID: 30056217 DOI: 10.1016/j.ijpharm.2018.07.060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 07/19/2018] [Accepted: 07/25/2018] [Indexed: 01/24/2023]
Abstract
Sulindac loaded poly(HEMA) cross-linked microparticles were synthesized via one-pot free-radical dispersion polymerisation in supercritical carbon dioxide (scCO2) in presence of photocleavable diblock stabilisers based on polyethylene oxide (PEO) and poly(heptadecafluorodecyl acrylate) (PFDA) bearing a o-nitrobenzyl photosensitive junction (hv) (PEO-hv-PFDA), and ethylene glycol dimethacrylate (EGDMA) as cross-linker. Poly(HEMA) cross-linked microparticles either empty or sulindac loaded were obtained with well-defined spherical morphology with the sizes between 250 and 350 nm. Additionally, upon UV-photolysis the stabiliser on the surface was cleaved which permits to microparticles to be redispersed in water leading to water swollen microgels about 2.1-3.6 µm. Moreover, the release behaviour from obtained microgels indicated the sustained release of sulindac over 10 days. Besides, the surface modification after UV-photolysis was studied and proved that the particles can be functionalised with further chemistries.
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Affiliation(s)
- Rahmet Parilti
- CERM, CESAM Research Unit, University of Liege, 13, Allee du Six Août, B-4000 Liege, Belgium; School of Chemistry, University of Nottingham, University Park, NG7 2RD Nottingham, United Kingdom
| | - Raphaël Riva
- CERM, CESAM Research Unit, University of Liege, 13, Allee du Six Août, B-4000 Liege, Belgium
| | - Steven M Howdle
- School of Chemistry, University of Nottingham, University Park, NG7 2RD Nottingham, United Kingdom
| | - Christine Dupont-Gillain
- Institute of Condensed Matter and Nanosciences (IMCN), Bio and Soft Matter Division (BSMA), Université Catholique de Louvain, Place Louis Pasteur 1, 1348 Louvain-la-Neuve, Belgium
| | - Christine Jerome
- CERM, CESAM Research Unit, University of Liege, 13, Allee du Six Août, B-4000 Liege, Belgium.
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Khutoryanskiy VV. Beyond PEGylation: Alternative surface-modification of nanoparticles with mucus-inert biomaterials. Adv Drug Deliv Rev 2018; 124:140-149. [PMID: 28736302 DOI: 10.1016/j.addr.2017.07.015] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Revised: 07/05/2017] [Accepted: 07/17/2017] [Indexed: 11/17/2022]
Abstract
Mucus is a highly hydrated viscoelastic gel present on various moist surfaces in our body including the eyes, nasal cavity, mouth, gastrointestinal, respiratory and reproductive tracts. It serves as a very efficient barrier that prevents harmful particles, viruses and bacteria from entering the human body. However, the protective function of the mucus also hampers the diffusion of drugs and nanomedicines, which dramatically reduces their efficiency. Functionalisation of nanoparticles with low molecular weight poly(ethylene glycol) (PEGylation) is one of the strategies to enhance their penetration through mucus. Recently a number of other polymers were explored as alternatives to PEGylation. These alternatives include poly(2-alkyl-2-oxazolines), polysarcosine, poly(vinyl alcohol), other hydroxyl-containing non-ionic water-soluble polymers, zwitterionic polymers (polybetaines) and mucolytic enzymes. This review discusses the studies reporting the use of these polymers or potential application to facilitate mucus permeation of nanoparticles.
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Affiliation(s)
- Vitaliy V Khutoryanskiy
- Reading School of Pharmacy, University of Reading, Whiteknights, PO Box 224, RG6 6AD Reading, United Kingdom.
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