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González-Itier S, Miranda M, Corrales-Orovio R, Vera C, Veloso-Giménez V, Cárdenas-Calderón C, Egaña JT. Plants as a cost-effective source for customizable photosynthetic wound dressings: A proof of concept study. Biotechnol Bioeng 2024; 121:1961-1972. [PMID: 38555480 DOI: 10.1002/bit.28705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/11/2024] [Accepted: 03/14/2024] [Indexed: 04/02/2024]
Abstract
Oxygen is essential for tissue regeneration, playing a crucial role in several processes, including cell metabolism and immune response. Therefore, the delivery of oxygen to wounds is an active field of research, and recent studies have highlighted the potential use of photosynthetic biomaterials as alternative oxygenation approach. However, while plants have traditionally been used to enhance tissue regeneration, their potential to produce and deliver local oxygen to wounds has not yet been explored. Hence, in this work we studied the oxygen-releasing capacity of Marchantia polymorpha explants, showing their capacity to release oxygen under different illumination settings and temperatures. Moreover, co-culture experiments revealed that the presence of these explants had no adverse effects on the viability and morphology of fibroblasts in vitro, nor on the viability of zebrafish larvae in vivo. Furthermore, oxygraphy assays demonstrate that these explants could fulfill the oxygen metabolic requirements of zebrafish larvae and freshly isolated skin biopsies ex vivo. Finally, the biocompatibility of explants was confirmed through a human skin irritation test conducted in healthy volunteers following the ISO-10993-10-2010. This proof-of-concept study provides valuable scientific insights, proposing the potential use of freshly isolated plants as biocompatible low-cost oxygen delivery systems for wound healing and tissue regeneration.
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Affiliation(s)
- Sergio González-Itier
- Institute for Biological and Medical Engineering, Schools of Engineering, Biological Sciences, and Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Miguel Miranda
- Institute for Biological and Medical Engineering, Schools of Engineering, Biological Sciences, and Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
- Faculty of Veterinary Medicine and Agronomy, Universidad de las Américas, Santiago, Chile
| | - Rocío Corrales-Orovio
- Institute for Biological and Medical Engineering, Schools of Engineering, Biological Sciences, and Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
- Division of Hand, Plastic and Aesthetic Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Constanza Vera
- Institute for Biological and Medical Engineering, Schools of Engineering, Biological Sciences, and Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Valentina Veloso-Giménez
- Institute for Biological and Medical Engineering, Schools of Engineering, Biological Sciences, and Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Camila Cárdenas-Calderón
- Institute for Biological and Medical Engineering, Schools of Engineering, Biological Sciences, and Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - José Tomás Egaña
- Institute for Biological and Medical Engineering, Schools of Engineering, Biological Sciences, and Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
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2
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Wang T, Li Y, Luo G, Ren D, Wu X, Xu D. Polylactic acid-based microcapsules for moisture-triggered release of chlorine dioxide and its application in cherry tomatoes preservation. Int J Biol Macromol 2024; 258:128662. [PMID: 38065456 DOI: 10.1016/j.ijbiomac.2023.128662] [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: 10/21/2023] [Revised: 11/27/2023] [Accepted: 12/05/2023] [Indexed: 12/21/2023]
Abstract
Polylactic acid (PLA)-based microcapsules, capable of releasing chlorine dioxide (ClO2) upon exposure to moisture, have been developed for fruits and vegetables preservation. The microcapsules were prepared by emulsion solvent evaporation, utilizing PLA as the wall material, and NaClO2 as the core material. After optimization, NaClO2 microcapsules exhibited an encapsulation efficiency of 55.75% and an average particle size of 498.08 μm. Citric acid microcapsules were prepared using the same process, but with citric acid as the core material. When the two kinds of microcapsules were mixed, gaseous ClO2 was released in a highly humid environment. The release rate could be adjusted by temperature and the ratio between the two microcapsules, and the release period could be as long as 17 days at 20 °C. With a certain amount of microcapsules placed in the package of cherry tomatoes, the decay rate and weight loss rate of the fruits were reduced by 63 % and 34 %, respectively, compared to the control group. The microcapsules also helped to maintain the good appearance, hardness, and the content of total soluble solid content and titratable acid content of cherry tomatoes. Therefore, the PLA-based microcapsules have satisfied convenience and effectiveness for application in fruit and vegetables preservation.
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Affiliation(s)
- Tao Wang
- College of Food Science, Southwest University, Chongqing 400700, China
| | - Yuanyuan Li
- College of Food Science, Southwest University, Chongqing 400700, China
| | - Guorong Luo
- College of Food Science, Southwest University, Chongqing 400700, China
| | - Dan Ren
- College of Food Science, Southwest University, Chongqing 400700, China; Food Storage and Logistics Research Center, Southwest University, Chongqing 400700, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China
| | - Xiyu Wu
- College of Food Science, Southwest University, Chongqing 400700, China; Food Storage and Logistics Research Center, Southwest University, Chongqing 400700, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China
| | - Dan Xu
- College of Food Science, Southwest University, Chongqing 400700, China; Food Storage and Logistics Research Center, Southwest University, Chongqing 400700, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China.
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3
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Zhao J, Zhou C, Xiao Y, Zhang K, Zhang Q, Xia L, Jiang B, Jiang C, Ming W, Zhang H, Long H, Liang W. Oxygen generating biomaterials at the forefront of regenerative medicine: advances in bone regeneration. Front Bioeng Biotechnol 2024; 12:1292171. [PMID: 38282892 PMCID: PMC10811251 DOI: 10.3389/fbioe.2024.1292171] [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: 09/11/2023] [Accepted: 01/02/2024] [Indexed: 01/30/2024] Open
Abstract
Globally, an annual count of more than two million bone transplants is conducted, with conventional treatments, including metallic implants and bone grafts, exhibiting certain limitations. In recent years, there have been significant advancements in the field of bone regeneration. Oxygen tension regulates cellular behavior, which in turn affects tissue regeneration through metabolic programming. Biomaterials with oxygen release capabilities enhance therapeutic effectiveness and reduce tissue damage from hypoxia. However, precise control over oxygen release is a significant technical challenge, despite its potential to support cellular viability and differentiation. The matrices often used to repair large-size bone defects do not supply enough oxygen to the stem cells being used in the regeneration process. Hypoxia-induced necrosis primarily occurs in the central regions of large matrices due to inadequate provision of oxygen and nutrients by the surrounding vasculature of the host tissues. Oxygen generating biomaterials (OGBs) are becoming increasingly significant in enhancing our capacity to facilitate the bone regeneration, thereby addressing the challenges posed by hypoxia or inadequate vascularization. Herein, we discussed the key role of oxygen in bone regeneration, various oxygen source materials and their mechanism of oxygen release, the fabrication techniques employed for oxygen-releasing matrices, and novel emerging approaches for oxygen delivery that hold promise for their potential application in the field of bone regeneration.
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Affiliation(s)
- Jiayi Zhao
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Chao Zhou
- Department of Orthopedics, Zhoushan Guanghua Hospital, Zhoushan, China
| | - Yang Xiao
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Kunyan Zhang
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Qiang Zhang
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Linying Xia
- Medical Research Center, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Bo Jiang
- Rehabilitation Department, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Chanyi Jiang
- Department of Pharmacy, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Wenyi Ming
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Hengjian Zhang
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Hengguo Long
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Wenqing Liang
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
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Yang K, Han HS, An SH, Park KH, Nam K, Hwang S, Lee Y, Cho SY, Kim T, Choe D, Kim SW, Yu W, Lee H, Park J, You S, Jo DG, Choi KY, Roh YH, Park JH. Mucoadhesive chitosan microcapsules for controlled gastrointestinal delivery and oral bioavailability enhancement of low molecular weight peptides. J Control Release 2024; 365:422-434. [PMID: 37863357 DOI: 10.1016/j.jconrel.2023.10.021] [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: 02/28/2023] [Revised: 08/21/2023] [Accepted: 10/16/2023] [Indexed: 10/22/2023]
Abstract
A bioactive compound, collagen peptide (CP), is widely used for biological activities such as anti-photoaging and antioxidant effects, with increased oral bioavailability because of its low molecular weight and high hydrophilicity. However, controlling release time and increasing retention time in the digestive tract for a more convenient oral administration is still a challenge. We developed CP-loaded chitosan (CS) microcapsules via strong and rapid ionic gelation using a highly negative phytic acid (PA) crosslinker. The platform enhanced the oral bioavailability of CP with controlled gastrointestinal delivery by utilizing the mucoadhesiveness and tight junction-opening properties of CS. CS and CP concentrations varied from 1.5 to 3.5% and 0-30%, respectively, for optimal and stable microcapsule synthesis. The physicochemical properties, in vitro release profile with intestinal permeability, in vivo oral bioavailability, in vivo biodistribution, anti-photoaging effect, and antioxidant effect of optimized CS microcapsules were analyzed to investigate the impact of controlling parameters. The structure of CS microcapsules was tuned by PA diffused gradient ionic cross-linking degree, resulting in a controlled CP release region in the gastrointestinal tract. The optimized microcapsules increased Cmax, AUC, and tmax by 1.5-, 3.4-, and 8.0-fold, respectively. Furthermore, CP in microcapsules showed anti-photoaging effects by downregulating matrix metalloproteinases-1 via antioxidant effects. According to our knowledge, this is the first study to microencapsulate CP for oral bioavailability enhancement. The peptide delivery method employed is simple, economical, and can be applied to customize bioactive compound administration.
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Affiliation(s)
- Kyungjik Yang
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Hwa Seung Han
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, Gangneung 120, Republic of Korea
| | - Seung Hwan An
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Kyung Hoon Park
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Keonwook Nam
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Shinha Hwang
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Yuyeon Lee
- Graduate Program in Bioindustrial Engineering, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Sung Yeon Cho
- Graduate Program in Bioindustrial Engineering, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Taehyung Kim
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Deokyeong Choe
- School of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sang Won Kim
- Yonsei University Dairy R&D Center, Asan, Republic of Korea
| | - Wonkyu Yu
- Yonsei University Dairy R&D Center, Asan, Republic of Korea
| | - Hyunah Lee
- Department of Bio-Convergence Engineering, Dongyang Mirae University, 445-8, Gyeongin-ro, Guro-gu, Seoul 02841, Republic of Korea
| | - Jiyong Park
- Nutrex Technology, 670 Daewangpangyo-ro, Seongnam 13494, Republic of Korea
| | - SangGuan You
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, Gangneung 120, Republic of Korea; East Coast Research Institute of Life Science, Gangneung-Wonju National University, 120 Gangneung, Gangwon 210-702, Republic of Korea
| | - Dong-Gyu Jo
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea; Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul 06351, Republic of Korea; Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon 16419, Republic of Korea.
| | - Ki Young Choi
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, Gangneung 120, Republic of Korea.
| | - Young Hoon Roh
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea; Graduate Program in Bioindustrial Engineering, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
| | - Jae Hyung Park
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul 06351, Republic of Korea; Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon 16419, Republic of Korea; School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
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5
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Moloudi K, Abrahamse H, George BP. Nanotechnology-mediated photodynamic therapy: Focus on overcoming tumor hypoxia. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2024; 16:e1937. [PMID: 38072393 DOI: 10.1002/wnan.1937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 10/05/2023] [Accepted: 11/20/2023] [Indexed: 03/09/2024]
Abstract
The oxygen level in the tumor is a critical marker that determines response to different treatments. Cancerous cells can adapt to hypoxia and low pH conditions within the tumor microenvironment (TME) to regulate tumor metabolism, proliferation, and promote tumor metastasis as well as angiogenesis, consequently leading to treatment failure and recurrence. In recent years, widespread attempts have been made to overcome tumor hypoxia through different methods, such as hyperbaric oxygen therapy (HBOT), hyperthermia, O2 carriers, artificial hemoglobin, oxygen generator hydrogels, and peroxide materials. While oxygen is found to be an essential agent to improve the treatment response of photodynamic therapy (PDT) and other cancer treatment modalities, the development of hypoxia within the tumor is highly associated with PDT failure. Recently, the use of nanoparticles has been a hot topic for researchers and exploited to overcome hypoxia through Oxygen-generating hydrogels, O2 nanocarriers, and O2 -generating nanoparticles. This review aimed to discuss the role of nanotechnology in tumor oxygenation and highlight the challenges, prospective, and recent advances in this area to improve PDT outcomes. This article is categorized under: Nanotechnology Approaches to Biology > Cells at the Nanoscale Nanotechnology Approaches to Biology > Nanoscale Systems in Biology Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease.
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Affiliation(s)
- Kave Moloudi
- Laser Research Centre (LRC), Faculty of Health Sciences, University of Johannesburg, Johannesburg, South Africa
| | - Heidi Abrahamse
- Laser Research Centre (LRC), Faculty of Health Sciences, University of Johannesburg, Johannesburg, South Africa
| | - Blassan P George
- Laser Research Centre (LRC), Faculty of Health Sciences, University of Johannesburg, Johannesburg, South Africa
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6
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Al Mamun A, Ullah A, Chowdhury MEH, Marei HE, Madappura AP, Hassan M, Rizwan M, Gomes VG, Amirfazli A, Hasan A. Oxygen releasing patches based on carbohydrate polymer and protein hydrogels for diabetic wound healing: A review. Int J Biol Macromol 2023; 250:126174. [PMID: 37558025 DOI: 10.1016/j.ijbiomac.2023.126174] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 07/31/2023] [Accepted: 08/05/2023] [Indexed: 08/11/2023]
Abstract
Diabetic wounds are among the major healthcare challenges, consuming billions of dollars of resources and resulting in high numbers of morbidity and mortality every year. Lack of sufficient oxygen supply is one of the most dominant causes of impaired healing in diabetic wounds. Numerous clinical and experimental studies have demonstrated positive outcomes as a result of delivering oxygen at the diabetic wound site, including enhanced angiogenesis, antibacterial and cell proliferation activities. However, prolonged and sustained delivery of oxygen to improve the wound healing process has remained a major challenge due to rapid release of oxygen from oxygen sources and limited penetration of oxygen into deep skin tissues. Hydrogels made from sugar-based polymers such as chitosan and hyaluronic acid, and proteins such as gelatin, collagen and hemoglobin have been widely used to deliver oxygen in a sustained delivery mode. This review presents an overview of the recent advances in oxygen releasing hydrogel based patches as a therapeutic modality to enhance diabetic wound healing. Various types of oxygen releasing wound healing patch have been discussed along with their fabrication method, release profile, cytocompatibility and in vivo results. We also briefly discuss the challenges and prospects related to the application of oxygen releasing biomaterials as wound healing therapeutics.
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Affiliation(s)
- Abdulla Al Mamun
- Department of Mechanical and Industrial Engineering, Qatar University, Doha, Qatar; Biomedical Research Center (BRC), Qatar University, Doha, Qatar
| | - Asad Ullah
- Department of Mechanical and Industrial Engineering, Qatar University, Doha, Qatar; Biomedical Research Center (BRC), Qatar University, Doha, Qatar
| | | | - Hany E Marei
- Department of Cytology and Histology, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
| | - Alakananda Parassini Madappura
- Department of Mechanical and Industrial Engineering, Qatar University, Doha, Qatar; Biomedical Research Center (BRC), Qatar University, Doha, Qatar
| | - Mahbub Hassan
- School of Chemical & Biomolecular Engineering, The University of Sydney, NSW 2006, Australia
| | | | - Vincent G Gomes
- School of Chemical & Biomolecular Engineering, The University of Sydney, NSW 2006, Australia; Sydney Nano Institute, Sydney, NSW 2006, Australia
| | - Alidad Amirfazli
- Department of Mechanical Engineering, York University, Toronto, ON, Canada
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, Qatar University, Doha, Qatar; Biomedical Research Center (BRC), Qatar University, Doha, Qatar.
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7
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Wang Z, Chen T, Li X, Guo B, Liu P, Zhu Z, Xu RX. Oxygen-releasing biomaterials for regenerative medicine. J Mater Chem B 2023; 11:7300-7320. [PMID: 37427691 DOI: 10.1039/d3tb00670k] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
Oxygen is critical to the survival, function and fate of mammalian cells. Oxygen tension controls cellular behavior through metabolic programming, which in turn controls tissue regeneration. A variety of biomaterials with oxygen-releasing capabilities have been developed to provide oxygen supply to ensure cell survival and differentiation for therapeutic efficacy, and to prevent hypoxia-induced tissue damage and cell death. However, controlling the oxygen release with spatial and temporal accuracy is still technically challenging. In this review, we provide a comprehensive overview of organic and inorganic materials available as oxygen sources, including hemoglobin-based oxygen carriers (HBOCs), perfluorocarbons (PFCs), photosynthetic organisms, solid and liquid peroxides, and some of the latest materials such as metal-organic frameworks (MOFs). Additionally, we introduce the corresponding carrier materials and the oxygen production methods and present state-of-the-art applications and breakthroughs of oxygen-releasing materials. Furthermore, we discuss the current challenges and the future perspectives in the field. After reviewing the recent progress and the future perspectives of oxygen-releasing materials, we predict that smart material systems that combine precise detection of oxygenation and adaptive control of oxygen delivery will be the future trend for oxygen-releasing materials in regenerative medicine.
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Affiliation(s)
- Zhaojun Wang
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou 215000, China.
| | - Tianao Chen
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui 230026, China.
- Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xin Li
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou 215000, China.
| | - Buyun Guo
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui 230026, China.
- Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Peng Liu
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou 215000, China.
| | - Zhiqiang Zhu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui 230026, China.
- Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Ronald X Xu
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou 215000, China.
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui 230026, China.
- Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, Anhui 230026, China
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Chen L, Zheng B, Xu Y, Sun C, Wu W, Xie X, Zhu Y, Cai W, Lin S, Luo Y, Shi C. Nano hydrogel-based oxygen-releasing stem cell transplantation system for treating diabetic foot. J Nanobiotechnology 2023; 21:202. [PMID: 37370102 DOI: 10.1186/s12951-023-01925-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 05/10/2023] [Indexed: 06/29/2023] Open
Abstract
The employment of stem cells and hydrogel is widespread in contemporary clinical approaches to treating diabetic foot ulcers. However, the hypoxic conditions in the surrounding lesion tissue lead to a low stem cell survival rate following transplantation. This research introduces a novel hydrogel with superior oxygen permeability and biocompatibility, serving as a vehicle for developing a stem cell transplantation system incorporating oxygen-releasing microspheres and cardiosphere-derived stem cells (CDCs). By optimizing the peroxidase fixation quantity on the microsphere surface and the oxygen-releasing microsphere content within the transplantation system, intracellular oxygen levels were assessed using electron paramagnetic resonance (EPR) under simulated low-oxygen conditions in vitro. The expression of vascularization and repair-related indexes were evaluated via RT-PCR and ELISA. The microspheres were found to continuously release oxygen for three weeks within the transplantation system, promoting growth factor expression to maintain intracellular oxygen levels and support the survival and proliferation of CDCs. Moreover, the effect of this stem cell transplantation system on wound healing in a diabetic foot mice model was examined through an in vivo animal experiment. The oxygen-releasing microspheres within the transplantation system preserved the intracellular oxygen levels of CDCs in the hypoxic environment of injured tissues. By inhibiting the expression of inflammatory factors and stimulating the upregulation of pertinent growth factors, it improved the vascularization of ulcer tissue on the mice's back and expedited the healing of the wound site. Overall, the stem cell transplantation system in this study, based on hydrogels containing CDCs and oxygen-releasing microspheres, offers a promising strategy for the clinical implementation of localized stem cell delivery to improve diabetic foot wound healing.
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Affiliation(s)
- Liangmiao Chen
- Department of Endocrinology, The Third Affiliated Hospital of Wenzhou Medical University, 325200, Wenzhou, Zhejiang, China
| | - Bingru Zheng
- Department of Interventional Vascular Surgery, The Third Affiliated Hospital of Wenzhou Medical University, No.108 Wansong Road, 325200, Wenzhou, Zhejiang, China
| | - Yizhou Xu
- Department of Interventional Vascular Surgery, The Third Affiliated Hospital of Wenzhou Medical University, No.108 Wansong Road, 325200, Wenzhou, Zhejiang, China
| | - Changzheng Sun
- Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, Zhejiang, China
| | - Wanrui Wu
- Department of Interventional Vascular Surgery, The Third Affiliated Hospital of Wenzhou Medical University, No.108 Wansong Road, 325200, Wenzhou, Zhejiang, China
| | - Xiangpang Xie
- Department of Interventional Vascular Surgery, The Third Affiliated Hospital of Wenzhou Medical University, No.108 Wansong Road, 325200, Wenzhou, Zhejiang, China
| | - Yu Zhu
- Department of Interventional Vascular Surgery, The Third Affiliated Hospital of Wenzhou Medical University, No.108 Wansong Road, 325200, Wenzhou, Zhejiang, China
| | - Wei Cai
- Department of Interventional Vascular Surgery, The Third Affiliated Hospital of Wenzhou Medical University, No.108 Wansong Road, 325200, Wenzhou, Zhejiang, China
| | - Suifang Lin
- Department of Interventional Vascular Surgery, The Third Affiliated Hospital of Wenzhou Medical University, No.108 Wansong Road, 325200, Wenzhou, Zhejiang, China
| | - Ya Luo
- Department of Interventional Vascular Surgery, The Third Affiliated Hospital of Wenzhou Medical University, No.108 Wansong Road, 325200, Wenzhou, Zhejiang, China.
| | - Changsheng Shi
- Department of Interventional Vascular Surgery, The Third Affiliated Hospital of Wenzhou Medical University, No.108 Wansong Road, 325200, Wenzhou, Zhejiang, China.
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Wang H, Guo Y, Hu Y, Zhou Y, Chen Y, Huang X, Chen J, Deng Q, Cao S, Hu B, Jiang R, Pan J, Tan T, Wang Y, Chen Y, Dong Q, Chen P, Zhou Q. Ultrasound-controlled nano oxygen carriers enhancing cell viability in 3D GelMA hydrogel for the treatment of myocardial infarction. Int J Biol Macromol 2023:125139. [PMID: 37268076 DOI: 10.1016/j.ijbiomac.2023.125139] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/25/2023] [Accepted: 05/26/2023] [Indexed: 06/04/2023]
Abstract
Heart failure is a critical and ultimate phase of cardiovascular ailment that leads to a considerable incidence of disability and mortality. Among various factors contributing to heart failure, myocardial infarction is one of the most frequent and significant causes, which is still difficult to manage effectively. An innovative therapeutic strategy, namely a 3D bio-printed cardiac patch, has recently emerged as a promising approach to substitute damaged cardiomyocytes in a localized infarct region. Nevertheless, the efficacy of this treatment primarily relies on the long-term viability of the transplanted cells. In this study, we aimed to construct acoustically sensitive nano oxygen carriers to improve cell survival inside the bio-3D printed patch. In this study, we initially created nanodroplets capable of phase transition triggered by ultrasound and integrated them into GelMA (Gelatin Methacryloyl) hydrogels, which were then employed for 3D bioprinting. After adding nanodroplets and ultrasonic irradiation, numerous pores appeared inside the hydrogel with improved permeability. We further encapsulated hemoglobin into nanodroplets (ND-Hb) to construct oxygen carriers. Results of in vitro experiments showed the highest cell survival within the patch of ND-Hb irradiated by the low-intensity pulsed ultrasound (LIPUS) group. The genomic analysis discovered that the increased survival of seeded cells within the patch might be related to the protection of mitochondrial function owing to the improved hypoxic state. Eventually, in vivo studies revealed that the LIPUS+ND-Hb group had improved cardiac function and increased revascularization after myocardial infarction. To summarize, our study successfully improved the permeability of the hydrogel in a non-invasive and efficient manner, facilitating the exchange of substances in the cardiac patch. Moreover, ultrasound-controlled oxygen release augmented the viability of the transplanted cells and expedited the repair of infarcted tissues.
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Affiliation(s)
- Hao Wang
- Renmin Hospital of Wuhan University, 430060 Wuhan, China
| | - Yuxin Guo
- Renmin Hospital of Wuhan University, 430060 Wuhan, China
| | - Yugang Hu
- Renmin Hospital of Wuhan University, 430060 Wuhan, China
| | - Yanxiang Zhou
- Renmin Hospital of Wuhan University, 430060 Wuhan, China
| | - Yueying Chen
- Renmin Hospital of Wuhan University, 430060 Wuhan, China
| | - Xin Huang
- Renmin Hospital of Wuhan University, 430060 Wuhan, China
| | - Jinling Chen
- Renmin Hospital of Wuhan University, 430060 Wuhan, China
| | - Qing Deng
- Renmin Hospital of Wuhan University, 430060 Wuhan, China
| | - Sheng Cao
- Renmin Hospital of Wuhan University, 430060 Wuhan, China
| | - Bo Hu
- Renmin Hospital of Wuhan University, 430060 Wuhan, China
| | - Riyue Jiang
- Renmin Hospital of Wuhan University, 430060 Wuhan, China
| | - Juhong Pan
- Renmin Hospital of Wuhan University, 430060 Wuhan, China
| | - Tuantuan Tan
- Renmin Hospital of Wuhan University, 430060 Wuhan, China
| | - Yijia Wang
- Renmin Hospital of Wuhan University, 430060 Wuhan, China
| | - Yun Chen
- Wuhan University School of Basic Medical Science, 430060 Wuhan, China
| | - Qi Dong
- Wuhan University School of Basic Medical Science, 430060 Wuhan, China
| | - Pu Chen
- Wuhan University School of Basic Medical Science, 430060 Wuhan, China
| | - Qing Zhou
- Renmin Hospital of Wuhan University, 430060 Wuhan, China.
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10
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Guan Y, Niu H, Wen J, Dang Y, Zayed M, Guan J. Rescuing Cardiac Cells and Improving Cardiac Function by Targeted Delivery of Oxygen-Releasing Nanoparticles after or Even before Acute Myocardial Infarction. ACS NANO 2022; 16:19551-19566. [PMID: 36367231 PMCID: PMC9930176 DOI: 10.1021/acsnano.2c10043] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Myocardial infarction (MI) causes massive cell death due to restricted blood flow and oxygen deficiency. Rapid and sustained oxygen delivery following MI rescues cardiac cells and restores cardiac function. However, current oxygen-generating materials cannot be administered during acute MI stage without direct injection or suturing methods, both of which risk rupturing weakened heart tissue. Here, we present infarcted heart-targeting, oxygen-releasing nanoparticles capable of being delivered by intravenous injection at acute MI stage, and specifically accumulating in the infarcted heart. The nanoparticles can also be delivered before MI, then gather at the injured area after MI. We demonstrate that the nanoparticles, delivered either pre-MI or post-MI, enhance cardiac cell survival, stimulate angiogenesis, and suppress fibrosis without inducing substantial inflammation and reactive oxygen species overproduction. Our findings demonstrate that oxygen-delivering nanoparticles can provide a nonpharmacological solution to rescue the infarcted heart during acute MI and preserve heart function.
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Affiliation(s)
- Ya Guan
- Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Hong Niu
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Jiaxing Wen
- Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Yu Dang
- Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Mohamed Zayed
- Department of Surgery, Section of Vascular Surgery, Washington University in St. Louis, St. Louis, Missouri 63110, United States
- Department of Radiology, Washington University School of Medicine in St. Louis, St. Louis, Missouri 63110, United States
- Division of Molecular Cell Biology, Washington University School of Medicine in St. Louis, St. Louis, Missouri 63110, United States
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
- St. Louis Veterans Affairs, St. Louis, Missouri 63106, United States
| | - Jianjun Guan
- Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, Missouri 63130, United States
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
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11
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Herczeg CK, Song J. Sterilization of Polymeric Implants: Challenges and Opportunities. ACS APPLIED BIO MATERIALS 2022; 5:5077-5088. [PMID: 36318175 PMCID: PMC9691608 DOI: 10.1021/acsabm.2c00793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Degradable and environmentally responsive polymers have been actively developed for drug delivery and regenerative medicine applications, yet inadequate consideration of their compatibility with terminal sterilization presents notable barriers to clinical translation. This Review discusses industry-established terminal sterilization methods and aseptic processing and contrasts them with innovative approaches aimed at preserving the integrity of polymeric implants. Regulatory guidelines, fiscal considerations, and potential pitfalls are discussed to encourage early integration of sterility regulatory considerations in material designs.
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Affiliation(s)
- Chloe K Herczeg
- Department of Orthopedics and Physical Rehabilitation, Department of Biochemistry and Molecular Biotechnology, UMass Chan Medical School, 55 Lake Avenue North, Worcester, Massachusetts 01655, United States
| | - Jie Song
- Department of Orthopedics and Physical Rehabilitation, Department of Biochemistry and Molecular Biotechnology, UMass Chan Medical School, 55 Lake Avenue North, Worcester, Massachusetts 01655, United States
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12
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Bazybek N, Wei Y, Ma G. Advances in encapsulating gonadotropin-releasing hormone agonists for controlled release: a review. J Microencapsul 2022; 39:452-466. [PMID: 35876729 DOI: 10.1080/02652048.2022.2100934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Gonadotropin-releasing hormone (GnRH) agonists are peptides consisting of nine or ten amino acid residues. GnRH agonists have been applied in the therapy of sexual hormone disorders like prostate cancer, endometriosis, uterine myoma, central precious puberty, and in-vitro fertility. Treatment is achieved by continuous hormone intake and long-term agonists administration, which is usually associated with poor patient compliance. Because GnRH agonists that are administered with the parenteral route are broken down by peptidase, their half-life is short. As a result, developing sustained release for the drug delivery system is significant. Even though some drugs have been successfully delivered with long-acting release microspheres and approved by the Food and Drug Administration (FDA), some challenges remain. This review highlighted current approaches to encapsulate GnRH agonists into delivery systems and strategies encountered during the loading process. Moreover, the following sections provide strategies to improve the release profile, and animal and human studies were summarised.
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Affiliation(s)
- Nardana Bazybek
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Yi Wei
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Guanghui Ma
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
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13
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Sousa VI, Parente JF, Marques JF, Calçada C, Veiga MI, Osório NS, Tavares CJ. PMMA Microcapsules for the Inactivation of SARS-CoV-2. ACS OMEGA 2022; 7:22383-22393. [PMID: 35785261 PMCID: PMC9235045 DOI: 10.1021/acsomega.2c01446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 06/07/2022] [Indexed: 06/15/2023]
Abstract
Surface disinfection currently plays a decisive role in the epidemiological situation caused by the SARS-CoV-2 coronavirus. However, most disinfection products available on the market have a high evaporation rate and only an immediate action and not continuous, creating the need for a high frequency of disinfection. To overcome this limitation, in the present work, poly(methyl methacrylate) (PMMA) microcapsules were developed with an active agent (hydrogen peroxide) encapsulated, which has the ability to inactivate/neutralize the SARS-CoV-2 virus. PMMA-H2O2 microcapsules have a spherical shape and a smooth structure with low porosity and were successfully attached to nonwoven fabrics, as observed from scanning electron microscopy. The thermogravimetric analysis shows that PMMA-H2O2 microcapsules have high thermal stability and can increase the stability of H2O2. Nonfabric substrates functionalized with PMMA-H2O2 microcapsules were tested by a highly sensitive and specific reverse transcription-quantitative real-time polymerase chain reaction (RT-qPCR)-based method to evaluate antiviral activity through the degradation of SARS-CoV-2 deoxyribonucleic acids. The highest percentage of viral nucleic acid elimination was obtained when exposing the viral sample for 1 h to PMMA-H2O2 microcapsules, resulting in an elimination of >97% of the coronavirus. In addition, the microcapsules are stable over a period of three weeks and retain the ability to eliminate SARS-CoV-2. Hence, it is demonstrated that this microcapsule system is efficient for SARS-CoV-2 elimination and inherent surface disinfection.
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Affiliation(s)
- Vânia I. Sousa
- Centre
of Physics of the Universities of Minho and Porto (CF-UM-PT), University of Minho, Campus of Azurém, 4835-386 Guimarães, Portugal
| | - Joana F. Parente
- Centre
of Physics of the Universities of Minho and Porto (CF-UM-PT), University of Minho, Campus of Azurém, 4835-386 Guimarães, Portugal
| | - Juliana F. Marques
- Centre
of Physics of the Universities of Minho and Porto (CF-UM-PT), University of Minho, Campus of Azurém, 4835-386 Guimarães, Portugal
- Interhigiene
- Indústria De Produtos De Higiene Lda., Rua General Humberto Delgado, no 588 Serzedelo, 4765-546 Guimarães, Portugal
| | - Carla Calçada
- Life
and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal
- ICVS/3B’s—PT
Government Associate Laboratory, 4806-909 Guimarães, Portugal
| | - Maria I. Veiga
- Life
and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal
- ICVS/3B’s—PT
Government Associate Laboratory, 4806-909 Guimarães, Portugal
| | - Nuno S. Osório
- Life
and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal
- ICVS/3B’s—PT
Government Associate Laboratory, 4806-909 Guimarães, Portugal
| | - Carlos J. Tavares
- Centre
of Physics of the Universities of Minho and Porto (CF-UM-PT), University of Minho, Campus of Azurém, 4835-386 Guimarães, Portugal
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14
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Photosynthetic microorganisms for the oxygenation of advanced 3D bioprinted tissues. Acta Biomater 2022:S1742-7061(22)00278-1. [PMID: 35562006 DOI: 10.1016/j.actbio.2022.05.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 05/04/2022] [Accepted: 05/05/2022] [Indexed: 02/06/2023]
Abstract
3D bioprinting technology has emerged as a tool that promises to revolutionize the biomedical field, including tissue engineering and regeneration. Despite major technological advancements, several challenges remain to be solved before 3D bioprinted tissues could be fully translated from the bench to the bedside. As oxygen plays a key role in aerobic metabolism, which allows energy production in the mitochondria; as a consequence, the lack of tissue oxygenation is one of the main limitations of current bioprinted tissues and organs. In order to improve tissue oxygenation, recent approaches have been established for a broad range of clinical applications, with some already applied using 3D bioprinting technologies. Among them, the incorporation of photosynthetic microorganisms, such as microalgae and cyanobacteria, is a promising approach that has been recently explored to generate chimerical plant-animal tissues where, upon light exposure, oxygen can be produced and released in a localized and controlled manner. This review will briefly summarize the state-of-the-art approaches to improve tissue oxygenation, as well as studies describing the use of photosynthetic microorganisms in 3D bioprinting technologies. STATEMENT OF SIGNIFICANCE: 3D bioprinting technology has emerged as a tool for the generation of viable and functional tissues for direct in vitro and in vivo applications, including disease modeling, drug discovery and regenerative medicine. Despite the latest advancements in this field, suboptimal oxygen delivery to cells before, during and after the bioprinting process limits their viability within 3D bioprinted tissues. This review article first highlights state-of-the-art approaches used to improve oxygen delivery in bioengineered tissues to overcome this challenge. Then, it focuses on the emerging roles played by photosynthetic organisms as novel biomaterials for bioink generation. Finally, it provides considerations around current challenges and novel potential opportunities for their use in bioinks, by comparing latest published studies using algae for 3D bioprinting.
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15
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Oxygen and Drug-Carrying Periodic Mesoporous Organosilicas for Enhanced Cell Viability under Normoxic and Hypoxic Conditions. Int J Mol Sci 2022; 23:ijms23084365. [PMID: 35457183 PMCID: PMC9024945 DOI: 10.3390/ijms23084365] [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: 03/25/2022] [Revised: 04/13/2022] [Accepted: 04/13/2022] [Indexed: 02/05/2023] Open
Abstract
Over the last decade, inorganic/organic hybrids have been exploited for oxygen-carrying materials and drug delivery. Its low-cost synthesis, controlled shape and size, and stability have made it a viable delivery strategy for therapeutic agents. Rutin (quercetin-3-O-rutinoside) is a bioflavonoid found in fruits and vegetables. Rutin has a variety of pharmaceutical applications, but its low water solubility reduces its stability and bioavailability. As a result, we introduce a new and stable nanosystem for loading a low-soluble drug (rutin) into oxygen-carrying periodic mesoporous organosilicas (PMO-PFCs). Over the course of 14 days, this nanosystem provided a sustained oxygen level to the cells in both normoxic and hypoxic conditions. At different pH values, the drug release (rutin) profile is also observed. Furthermore, the rutin-coated PMO-PFCs interacted with both healthy and malignant cells. The healthy cells have better cell viability on the rutin-coated oxygen-carrying PMO-PFCs, while the malignant cells have a lower cell viability.
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16
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Dadkhah Tehrani F, Shabani I, Shabani A. A hybrid oxygen-generating wound dressing based on chitosan thermosensitive hydrogel and decellularized amniotic membrane. Carbohydr Polym 2022; 281:119020. [DOI: 10.1016/j.carbpol.2021.119020] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 11/19/2021] [Accepted: 12/13/2021] [Indexed: 11/28/2022]
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17
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Zhou S, Wang Q, Huang A, Fan H, Yan S, Zhang Q. Advances in Skin Wound and Scar Repair by Polymer Scaffolds. Molecules 2021; 26:6110. [PMID: 34684690 PMCID: PMC8541489 DOI: 10.3390/molecules26206110] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/25/2021] [Accepted: 10/06/2021] [Indexed: 12/24/2022] Open
Abstract
Scars, as the result of abnormal wound-healing response after skin injury, may lead to loss of aesthetics and physical dysfunction. Current clinical strategies, such as surgical excision, laser treatment, and drug application, provide late remedies for scarring, yet it is difficult to eliminate scars. In this review, the functions, roles of multiple polymer scaffolds in wound healing and scar inhibition are explored. Polysaccharide and protein scaffolds, an analog of extracellular matrix, act as templates for cell adhesion and migration, differentiation to facilitate wound reconstruction and limit scarring. Stem cell-seeded scaffolds and growth factors-loaded scaffolds offer significant bioactive substances to improve the wound healing process. Special emphasis is placed on scaffolds that continuously release oxygen, which greatly accelerates the vascularization process and ensures graft survival, providing convincing theoretical support and great promise for scarless healing.
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Affiliation(s)
| | | | | | | | - Shuqin Yan
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, China; (S.Z.); (Q.W.); (A.H.); (H.F.)
| | - Qiang Zhang
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, China; (S.Z.); (Q.W.); (A.H.); (H.F.)
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18
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Mavris SM, Hansen LM. Optimization of Oxygen Delivery Within Hydrogels. J Biomech Eng 2021; 143:101004. [PMID: 33973004 PMCID: PMC8299803 DOI: 10.1115/1.4051119] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 05/05/2021] [Indexed: 12/19/2022]
Abstract
The field of tissue engineering has been continuously evolving since its inception over three decades ago with numerous new advancements in biomaterials and cell sources and widening applications to most tissues in the body. Despite the substantial promise and great opportunities for the advancement of current medical therapies and procedures, the field has yet to capture wide clinical translation due to some remaining challenges, including oxygen availability within constructs, both in vitro and in vivo. While this insufficiency of nutrients, specifically oxygen, is a limitation within the current frameworks of this field, the literature shows promise in new technological advances to efficiently provide adequate delivery of nutrients to cells. This review attempts to capture the most recent advances in the field of oxygen transport in hydrogel-based tissue engineering, including a comparison of current research as it pertains to the modeling, sensing, and optimization of oxygen within hydrogel constructs as well as new technological innovations to overcome traditional diffusion-based limitations. The application of these findings can further the advancement and development of better hydrogel-based tissue engineered constructs for future clinical translation and adoption.
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Affiliation(s)
- Sophia M. Mavris
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 313 Ferst Drive, Atlanta, GA 30332
| | - Laura M. Hansen
- Division of Cardiology, Department of Medicine, Emory University School of Medicine, 101 Woodruff Circle, Atlanta, GA 30322
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19
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Erdem A, Haghniaz R, Ertas YN, Sangabathuni SK, Nasr AS, Swieszkowski W, Ashammakhi N. Methods for fabricating oxygen releasing biomaterials. J Drug Target 2021; 30:188-199. [PMID: 34486908 DOI: 10.1080/1061186x.2021.1971235] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Sustained external supply of oxygen (O2) to engineered tissue constructs is important for their survival in the body while angiogenesis is taking place. In the recent years, the trend towards the fabrication of various O2-generating materials that can provide prolonged and controlled O2 source to the large volume tissue constructs resulted in preventing necrosis associated with the lack of O2 supply. In this review, we explain different methods employed in the fabrication of O2-generating materials such as emulsion, microfluidics, solvent casting, freeze drying, electrospraying, gelation, microfluidic and three-dimensional (3D) bioprinting methods. After discussing pros and cons of each method, we review physical, chemical, and biological characterisation techniques used to analyse the resulting product. Finally, the challenges and future directions in the field are discussed.
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Affiliation(s)
- Ahmet Erdem
- Department of Biomedical Engineering, Kocaeli University, Kocaeli, Turkey
| | - Reihaneh Haghniaz
- Department of Bioengineering, University of California - Los Angeles, Los Angeles, California, USA
| | - Yavuz Nuri Ertas
- Department of Biomedical Engineering, Erciyes University, Kayseri, Turkey.,ERNAM - Nanotechnology Research and Application Center, Erciyes University, Kayseri, Turkey
| | - Siva Koti Sangabathuni
- Department of Bioengineering, University of California - Los Angeles, Los Angeles, California, USA
| | - Ali S Nasr
- Division of Cardiothoracic Surgery, Department of Surgery, University of Iowa Hospitals and Clinics, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Wojciech Swieszkowski
- Biomaterials Group, Materials Design Division, Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Nureddin Ashammakhi
- Department of Bioengineering, University of California - Los Angeles, Los Angeles, California, USA
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20
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Wang Y, Huang W, Wang N, Ouyang D, Xiao L, Zhang S, Ou X, He T, Yu R, Song L. Development of Arteannuin B Sustained-Release Microspheres for Anti-Tumor Therapy by Integrated Experimental and Molecular Modeling Approaches. Pharmaceutics 2021; 13:1236. [PMID: 34452197 PMCID: PMC8399913 DOI: 10.3390/pharmaceutics13081236] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/30/2021] [Accepted: 08/06/2021] [Indexed: 11/26/2022] Open
Abstract
Arteannuin B (AB) has been found to demonstrate obvious anti-tumor activity. However, AB is not available for clinical use due to its very low solubility and very short half-life. This study aimed to develop AB long sustained-release microspheres (ABMs) to improve the feasibility of clinical applications. Firstly, AB-polylactic-co-glycolic acid (PLGA) microspheres were prepared by a single emulsification method. In vitro characterization studies showed that ABMs had a low burst release and stable in vitro release for up to one week. The particle size of microspheres was 69.10 μm (D50). The drug loading is 37.8%, and the encapsulation rate is 85%. Moreover, molecular dynamics modeling was firstly used to simulate the preparation process of microspheres, which clearly indicated the molecular image of microspheres and provided in-depth insights for understanding several key preparation parameters. Next, in vivo pharmacokinetics (PK) study was carried out to evaluate its sustained release effect in Sprague-Dawley (SD) rats. Subsequently, the methyl thiazolyl tetrazolium (MTT) method with human lung cancer cells (A549) was used to evaluate the in vitro efficacy of ABMs, which showed the IC50 of ABMs (3.82 μM) to be lower than that of AB (16.03 μM) at day four. Finally, in vivo anti-tumor activity and basic toxicity studies were performed on BALB/c nude mice by subcutaneous injection once a week, four times in total. The relative tumor proliferation rate T/C of AMBs was lower than 40% and lasted for 21 days after administration. The organ index, organ staining, and tumor cell staining indicated the excellent safety of ABMs than Cis-platinum. In summary, the ABMs were successfully developed and evaluated with a low burst release and a stable release within a week. Molecular dynamics modeling was firstly applied to investigate the molecular mechanism of the microsphere preparation. Moreover, the ABMs possess excellent in vitro and in vivo anti-tumor activity and low toxicity, showing great potential for clinical applications.
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Affiliation(s)
- Yanqing Wang
- Biotechnological Institute of Chinese Materia Medica, Jinan University, Guangzhou 510632, China; (Y.W.); (S.Z.)
| | - Weijuan Huang
- Department of Pharmacology, College of Pharmacy, Jinan University, Guangzhou 510632, China; (W.H.); (X.O.); (T.H.)
| | - Nannan Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences (ICMS), University of Macau, Macau, China; (N.W.); (D.O.)
| | - Defang Ouyang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences (ICMS), University of Macau, Macau, China; (N.W.); (D.O.)
| | - Lifeng Xiao
- Zhuhai Livzon Microsphere Technology Co., Ltd., Zhuhai 519090, China;
| | - Sirui Zhang
- Biotechnological Institute of Chinese Materia Medica, Jinan University, Guangzhou 510632, China; (Y.W.); (S.Z.)
| | - Xiaozheng Ou
- Department of Pharmacology, College of Pharmacy, Jinan University, Guangzhou 510632, China; (W.H.); (X.O.); (T.H.)
| | - Tingsha He
- Department of Pharmacology, College of Pharmacy, Jinan University, Guangzhou 510632, China; (W.H.); (X.O.); (T.H.)
| | - Rongmin Yu
- Biotechnological Institute of Chinese Materia Medica, Jinan University, Guangzhou 510632, China; (Y.W.); (S.Z.)
| | - Liyan Song
- Department of Pharmacology, College of Pharmacy, Jinan University, Guangzhou 510632, China; (W.H.); (X.O.); (T.H.)
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21
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Alghamdi M, Gumbleton M, Newland B. Local delivery to malignant brain tumors: potential biomaterial-based therapeutic/adjuvant strategies. Biomater Sci 2021; 9:6037-6051. [PMID: 34357362 DOI: 10.1039/d1bm00896j] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Glioblastoma (GBM) is the most aggressive malignant brain tumor and is associated with a very poor prognosis. The standard treatment for newly diagnosed patients involves total tumor surgical resection (if possible), plus irradiation and adjuvant chemotherapy. Despite treatment, the prognosis is still poor, and the tumor often recurs within two centimeters of the original tumor. A promising approach to improving the efficacy of GBM therapeutics is to utilize biomaterials to deliver them locally at the tumor site. Local delivery to GBM offers several advantages over systemic administration, such as bypassing the blood-brain barrier and increasing the bioavailability of the therapeutic at the tumor site without causing systemic toxicity. Local delivery may also combat tumor recurrence by maintaining sufficient drug concentrations at and surrounding the original tumor area. Herein, we critically appraised the literature on local delivery systems based within the following categories: polymer-based implantable devices, polymeric injectable systems, and hydrogel drug delivery systems. We also discussed the negative effect of hypoxia on treatment strategies and how one might utilize local implantation of oxygen-generating biomaterials as an adjuvant to enhance current therapeutic strategies.
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Affiliation(s)
- Majed Alghamdi
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, King Edward VII Avenue, Cardiff, CF10 3NB, UK. and Faculty of Pharmacy, King Abdulaziz University, Jeddah, 22522, Kingdom of Saudi Arabia
| | - Mark Gumbleton
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, King Edward VII Avenue, Cardiff, CF10 3NB, UK.
| | - Ben Newland
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, King Edward VII Avenue, Cardiff, CF10 3NB, UK. and Leibniz-Institut für Polymerforschung Dresden, Max Bergmann Center of Biomaterials Dresden, Hohe Straße 6, D-01069 Dresden, Germany
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22
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Guan Y, Niu H, Liu Z, Dang Y, Shen J, Zayed M, Ma L, Guan J. Sustained oxygenation accelerates diabetic wound healing by promoting epithelialization and angiogenesis and decreasing inflammation. SCIENCE ADVANCES 2021; 7:eabj0153. [PMID: 34452918 PMCID: PMC8397271 DOI: 10.1126/sciadv.abj0153] [Citation(s) in RCA: 182] [Impact Index Per Article: 60.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 07/06/2021] [Indexed: 05/09/2023]
Abstract
Nonhealing diabetic wounds are common complications for diabetic patients. Because chronic hypoxia prominently delays wound healing, sustained oxygenation to alleviate hypoxia is hypothesized to promote diabetic wound healing. However, sustained oxygenation cannot be achieved by current clinical approaches, including hyperbaric oxygen therapy. Here, we present a sustained oxygenation system consisting of oxygen-release microspheres and a reactive oxygen species (ROS)-scavenging hydrogel. The hydrogel captures the naturally elevated ROS in diabetic wounds, which may be further elevated by the oxygen released from the administered microspheres. The sustained release of oxygen augmented the survival and migration of keratinocytes and dermal fibroblasts, promoted angiogenic growth factor expression and angiogenesis in diabetic wounds, and decreased the proinflammatory cytokine expression. These effects significantly increased the wound closure rate. Our findings demonstrate that sustained oxygenation alone, without using drugs, can heal diabetic wounds.
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Affiliation(s)
- Ya Guan
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Hong Niu
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Zhongting Liu
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Yu Dang
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Jie Shen
- Department of Orthopedic Surgery, Washington University in St. Louis, St. Louis, MO 63110, USA
| | - Mohamed Zayed
- Department of Surgery, Section of Vascular Surgery, Washington University in St. Louis, St. Louis, MO 63110, USA
| | - Liang Ma
- Department of Internal Medicine, Division of Dermatology, Washington University in St. Louis, St. Louis, MO 63110, USA
| | - Jianjun Guan
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130, USA.
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23
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Salim SA, Kamoun EA, Evans S, Taha TH, El-Fakharany EM, Elmazar MM, Abdel-Aziz AF, Abou-Saleh RH, Salaheldin TA. Novel oxygen-generation from electrospun nanofibrous scaffolds with anticancer properties: synthesis of PMMA-conjugate PVP-H 2O 2 nanofibers, characterization, and in vitro bio-evaluation tests. RSC Adv 2021; 11:19978-19991. [PMID: 35479904 PMCID: PMC9033669 DOI: 10.1039/d1ra02575a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 05/17/2021] [Indexed: 11/21/2022] Open
Abstract
Released oxygen plays a critical role in reducing destructive tumor behavior. This study aims to utilize decomposed hydrogen peroxide as an oxygen source by conjugating it with polyvinylpyrrolidone (PVP). PVP-hydrogen peroxide complex (PHP) composed of different ratios of (PVP : H2O2) (0.5 : 1, 1 : 1, 1 : 1.5, 1 : 5, and 1 : 10) were successfully synthesized. PHP complex with a ratio of 1 : 1.5 was chosen as the optimized ratio, and it was incorporated into the polymethyl methacrylate (PMMA) nanofibrous scaffold via the electrospinning technique. Results have revealed that the PMMA-10% PHP complex provided a significant morphological structure of nanofibrous scaffolds. The mechanical properties of PMMA-10% PHP nanofibers showed the most suitable mechanical features such as Young's modulus, elongation-at-break (%), and maximum strength, in addition to the highest degree of swelling. All PHP complex scaffolds released oxygen in a sustained manner. However, the PMMA-10% PHP complex gave the highest concentration of released-oxygen with (∼8.9 mg L-1, after 2.5 h). PMMA-10% PHP nanofibers provided an ideal model for released-oxygen scaffold with anti-cancer effect and high selectivity for cancer cells, especially for breast cancer cells. Nanofibrous scaffolds with different composition revealed high cell viability for normal cells. Such outcomes support the suitability of using synthesized nanofibrous scaffolds as released-oxygen biomaterials to enhance cancer cells' sensitivity and maximize the treatment effect.
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Affiliation(s)
- Samar A Salim
- Nanotechnology Research Center (NTRC), The British University in Egypt (BUE) El-Sherouk City Cairo 11837 Egypt
- Biochemistry Group, Dep. of Chemistry, Faculty of Science, Mansoura University Egypt
| | - Elbadawy A Kamoun
- Nanotechnology Research Center (NTRC), The British University in Egypt (BUE) El-Sherouk City Cairo 11837 Egypt
- Polymeric Materials Research Dep., Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City) New Borg Al-Arab City 21934 Alexandria Egypt
| | - Stephen Evans
- Molecular and Nanoscale Physics Group, School of Physics and Astronomy, University of Leeds LS2 9JT UK
| | - Tarek H Taha
- Environmental Biotechnology Dep., GEBRI, City of Scientific Research and Technological Applications (SRTA-City) New Borg Al-Arab City 21934 Alexandria Egypt
| | - Esmail M El-Fakharany
- Protein Research Dep., GEBRI, City of Scientific Research and Technological Applications (SRTA-City) New Borg Al-Arab City 21934 Alexandria Egypt
| | - Mohamed M Elmazar
- Faculty of Pharmacy, The British University in Egypt (BUE) El-Sherouk City Cairo 11837 Egypt
| | - A F Abdel-Aziz
- Biochemistry Group, Dep. of Chemistry, Faculty of Science, Mansoura University Egypt
| | - R H Abou-Saleh
- Biophysics Group, Dep. of Physics, Faculty of Science, Mansoura University Egypt
- Nanoscience and Technology Program, Faculty of Advanced Basic Science, Galala University Egypt
| | - Taher A Salaheldin
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences Abany NY 12144 USA
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24
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Motealleh A, Kehr NS. Injectable oxygen-generating nanocomposite hydrogels with prolonged oxygen delivery for enhanced cell proliferation under hypoxic and normoxic conditions. J Mater Chem B 2021; 8:4195-4201. [PMID: 32393933 DOI: 10.1039/d0tb00885k] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We describe a new organic peroxide-based injectable biomaterial that was prepared by using benzoylperoxide and LAPONITE® incorporated into an alginate hydrogel (BPO-AlgL). BPO-AlgL shows sustained release of O2 over a period of 14 days and reduces the hypoxia-induced cell death. BPO-AlgL also promotes enhanced cell viability by providing sustained O2 within the 3D AlgL scaffold. In addition, BPO-AlgL increases the O2 level in the environment of the cells, which led to a decrease in the proliferation of malignant cells, while it also resulted in an increase in the viability of healthy fibroblast cells. Therefore, our new oxygen generating organic peroxide-based injectable 3D biomaterials have potential to contribute in the development of next generation advanced tissue engineering biomaterials.
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Affiliation(s)
- Andisheh Motealleh
- Physikalisches Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Busse-Peus-Strasse 10, Münster 48149, Germany.
| | - Nermin S Kehr
- Physikalisches Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Busse-Peus-Strasse 10, Münster 48149, Germany.
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25
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Nejati S, Karimi‐Soflou R, Karkhaneh A. Influence of process parameters on the characteristics of oxygen‐releasing poly (lactic acid) microparticles: A multioptimization strategy. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5134] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Sara Nejati
- Biomedical Engineering Department Amirkabir University of Technology (Tehran Polytechnic) Tehran Iran
| | - Reza Karimi‐Soflou
- Biomedical Engineering Department Amirkabir University of Technology (Tehran Polytechnic) Tehran Iran
| | - Akbar Karkhaneh
- Biomedical Engineering Department Amirkabir University of Technology (Tehran Polytechnic) Tehran Iran
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26
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Guan Y, Gao N, Niu H, Dang Y, Guan J. Oxygen-release microspheres capable of releasing oxygen in response to environmental oxygen level to improve stem cell survival and tissue regeneration in ischemic hindlimbs. J Control Release 2021; 331:376-389. [PMID: 33508351 DOI: 10.1016/j.jconrel.2021.01.034] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 01/20/2021] [Accepted: 01/21/2021] [Indexed: 02/09/2023]
Abstract
Stem cell transplantation has been extensively explored to promote ischemic limb vascularization and skeletal muscle regeneration. Yet the therapeutic efficacy is low due to limited cell survival under low oxygen environment of the ischemic limbs. Therefore, continuously oxygenating the transplanted cells has potential to increase their survival. During tissue regeneration, the number of blood vessels are gradually increased, leading to the elevation of tissue oxygen content. Accordingly, less exogenous oxygen is needed for the transplanted cells. Excessive oxygen may induce reactive oxygen species (ROS) formation, causing cell apoptosis. Thus, it is attractive to develop oxygen-release biomaterials that are responsive to the environmental oxygen level. Herein, we developed oxygen-release microspheres whose oxygen release was controlled by oxygen-responsive shell. The shell hydrophilicity and degradation rate decreased as the environmental oxygen level increased, leading to slower oxygen release. The microspheres were capable of directly releasing molecular oxygen, which are safer than those oxygen-release biomaterials that release hydrogen peroxide and rely on its decomposition to form oxygen. The released oxygen significantly enhanced mesenchymal stem cell (MSC) survival without inducing ROS production under hypoxic condition. Co-delivery of MSCs and microspheres to the mouse ischemic limbs ameliorated MSC survival, proliferation and paracrine effects under ischemic conditions. It also significantly accelerated angiogenesis, blood flow restoration, and skeletal muscle regeneration without provoking tissue inflammation. The above results demonstrate that the developed microspheres have potential to augment cell survival in ischemic tissues, and promote ischemic tissue regeneration in a safer and more efficient manner.
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Affiliation(s)
- Ya Guan
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130, USA; Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Ning Gao
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130, USA; Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Hong Niu
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130, USA; Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Yu Dang
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130, USA; Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Jianjun Guan
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130, USA; Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA.
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27
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Agarwal T, Kazemi S, Costantini M, Perfeito F, Correia CR, Gaspar V, Montazeri L, De Maria C, Mano JF, Vosough M, Makvandi P, Maiti TK. Oxygen releasing materials: Towards addressing the hypoxia-related issues in tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 122:111896. [PMID: 33641899 DOI: 10.1016/j.msec.2021.111896] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 01/09/2021] [Accepted: 01/16/2021] [Indexed: 02/07/2023]
Abstract
Manufacturing macroscale cell-laden architectures is one of the biggest challenges faced nowadays in the domain of tissue engineering. Such living constructs, in fact, pose strict requirements for nutrients and oxygen supply that can hardly be addressed through simple diffusion in vitro or without a functional vasculature in vivo. In this context, in the last two decades, a substantial amount of work has been carried out to develop smart materials that could actively provide oxygen-release to contrast local hypoxia in large-size constructs. This review provides an overview of the currently available oxygen-releasing materials and their synthesis and mechanism of action, highlighting their capacities under in vitro tissue cultures and in vivo contexts. Additionally, we also showcase an emerging concept, herein termed as "living materials as releasing systems", which relies on the combination of biomaterials with photosynthetic microorganisms, namely algae, in an "unconventional" attempt to supply the damaged or re-growing tissue with the necessary supply of oxygen. We envision that future advances focusing on tissue microenvironment regulated oxygen-supplying materials would unlock an untapped potential for generating a repertoire of anatomic scale, living constructs with improved cell survival, guided differentiation, and tissue-specific biofunctionality.
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Affiliation(s)
- Tarun Agarwal
- Department of Biotechnology, Indian Institute of Technology Kharagpur, West Bengal 721302, India
| | - Sara Kazemi
- Department of Cell Engineering, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Marco Costantini
- Institute of Physical Chemistry - Polish Academy of Sciences, Warsaw, Poland
| | - Francisca Perfeito
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Clara R Correia
- Research Center "E. Piaggio", Department of Information Engineering, University of Pisa, Largo Lucio Lazzarino 1, 56122 Pisa, Italy
| | - Vítor Gaspar
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Leila Montazeri
- Department of Cell Engineering, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Carmelo De Maria
- Research Center "E. Piaggio", Department of Information Engineering, University of Pisa, Largo Lucio Lazzarino 1, 56122 Pisa, Italy
| | - João F Mano
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Massoud Vosough
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran; Department of Regenerative Medicine, Cell Science Research Centre, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
| | - Pooyan Makvandi
- Center for MicroBioRobotics (CMBR), Istituto Italiano di Tecnologia, Pisa, Italy
| | - Tapas Kumar Maiti
- Department of Biotechnology, Indian Institute of Technology Kharagpur, West Bengal 721302, India.
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28
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Development of an oxygen-releasing electroconductive in-situ crosslinkable hydrogel based on oxidized pectin and grafted gelatin for tissue engineering applications. Colloids Surf B Biointerfaces 2020; 196:111347. [DOI: 10.1016/j.colsurfb.2020.111347] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/19/2020] [Accepted: 08/22/2020] [Indexed: 12/16/2022]
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29
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Liu L, Wan J, Dai M, Ye X, Liu C, Tang C, Zhu L. Effects of oxygen generating scaffolds on cell survival and functional recovery following acute spinal cord injury in rats. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2020; 31:115. [PMID: 33247423 DOI: 10.1007/s10856-020-06453-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Accepted: 10/27/2020] [Indexed: 06/12/2023]
Abstract
Persistent local oxygen delivery is crucial to create a microenvironment for cell survival and nerve regeneration in acute spinal cord injury (SCI). This study aimed to fabricate calcium peroxide-based microspheres incorporated into a 3-D construct scaffold as a novel oxygen release therapy for SCI. The scaffolds were able to generate oxygen over the course of 21 days when incubated under hypoxic conditions. In vitro, GFP-labeled bone marrow-derived mesenchymal stem cells (MSCs) were planted into the scaffolds. We observed that scaffolds could enhance MSC survival under hypoxic conditions for more than 21 days. Oxygen generating scaffolds were transplanted into spinal cord injury sites of rats in vivo. Twelve weeks following transplantation, cavity areas in the injury/graft site were significantly reduced due to tissue regeneration. Additionally, the oxygen generating scaffolds improved revascularization as observed through vWF immunostaining. A striking feature was the occurrence of nerve fiber regeneration in the lesion sites, which eventually led to significant locomotion recovery. The present results indicate that the oxygen generating scaffolds have the property of sustained local oxygen release, thus facilitating regeneration in injured spinal cords.
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Affiliation(s)
- Liangle Liu
- Department of Spinal Surgery, Orthopaedic Medical Center,Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, Guangdong, China
- Rui'an People's Hospital & the third Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325200, China
| | - Junming Wan
- Tongde Hospital of Zhejiang Province, Hanzhou, 310002, China
| | - Minghai Dai
- Rui'an People's Hospital & the third Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325200, China
| | - Xiuzhi Ye
- Rui'an People's Hospital & the third Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325200, China
| | - Chun Liu
- Department of Spinal Surgery, Orthopaedic Medical Center,Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, Guangdong, China
| | - Chengxuan Tang
- Rui'an People's Hospital & the third Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325200, China.
| | - Lixin Zhu
- Department of Spinal Surgery, Orthopaedic Medical Center,Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, Guangdong, China.
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30
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Molavi F, Barzegar-Jalali M, Hamishehkar H. Polyester based polymeric nano and microparticles for pharmaceutical purposes: A review on formulation approaches. J Control Release 2020; 320:265-282. [DOI: 10.1016/j.jconrel.2020.01.028] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 01/15/2020] [Accepted: 01/17/2020] [Indexed: 12/18/2022]
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31
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Niu H, Li C, Guan Y, Dang Y, Li X, Fan Z, Shen J, Ma L, Guan J. High oxygen preservation hydrogels to augment cell survival under hypoxic condition. Acta Biomater 2020; 105:56-67. [PMID: 31954189 PMCID: PMC7098391 DOI: 10.1016/j.actbio.2020.01.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/18/2019] [Accepted: 01/13/2020] [Indexed: 12/29/2022]
Abstract
Cell therapy is a promising approach for ischemic tissue regeneration. However, high death rate of delivered cells under low oxygen condition, and poor cell retention in tissues largely limit the therapeutic efficacy. Using cell carriers with high oxygen preservation has potential to improve cell survival. To increase cell retention, cell carriers that can quickly solidify at 37 °C so as to efficiently immobilize the carriers and cells in the tissues are necessary. Yet there lacks cell carriers with these combined properties. In this work, we have developed a family of high oxygen preservation and fast gelation hydrogels based on N-isopropylacrylamide (NIPAAm) copolymers. The hydrogels were synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization of NIPAAm, acrylate-oligolactide (AOLA), 2-hydroxyethyl methacrylate (HEMA), and methacrylate-poly(ethylene glycol)-perfluorooctane (MAPEGPFC). The hydrogel solutions exhibited sol-gel temperatures around room temperature and were flowable and injectable at 4°C. They can quickly solidify (≤6 s) at 37°C to form flexible gels. These hydrogels lost 9.4~29.4% of their mass after incubation in Dulbecco's Phosphate-Buffered Saline (DPBS) for 4 weeks. The hydrogels exhibited a greater oxygen partial pressure than DPBS after being transferred from a 21% O2 condition to a 1% O2 condition. When bone marrow mesenchymal stem cells (MSCs) were encapsulated in the hydrogels and cultured under 1% O2, the cells survived and proliferated during the 14-day culture period. In contrast, the cells experienced extensive death in the control hydrogel that had low oxygen preservation capability. The hydrogels possessed excellent biocompatibility. The final degradation products did not provoke cell death even when the concentration was as high as 15 mg/ml, and the hydrogel implantation did not induce substantial inflammation. These hydrogels are promising as cell carriers for cell transplantation into ischemic tissues. STATEMENT OF SIGNIFICANCE: Stem cell therapy for ischemic tissues experiences low therapeutic efficacy largely due to poor cell survival under low oxygen condition. Using cell carriers with high oxygen preservation capability has potential to improve cell survival. In this work, we have developed a family of hydrogels with this property. These hydrogels promoted the encapsulated stem cell survival and growth under low oxygen condition.
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Affiliation(s)
- Hong Niu
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA; Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Chao Li
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Ya Guan
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA; Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Yu Dang
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA; Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Xiaofei Li
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Zhaobo Fan
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Jie Shen
- Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO, 631310, USA
| | - Liang Ma
- Division of Dermatology, Washington University School of Medicine, St. Louis, MO, 631310, USA
| | - Jianjun Guan
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA; Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130, USA.
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32
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Wei Y, Wu Y, Wen K, Bazybek N, Ma G. Recent research and development of local anesthetic-loaded microspheres. J Mater Chem B 2020; 8:6322-6332. [DOI: 10.1039/d0tb01129k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
This review introduces the recent research and development in local anesthetic-loaded microsphere, as efficient microspheres formulation, the efficient microspheres: optimum preparation method, high loading efficiency, and ideal release rate.
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Affiliation(s)
- Yi Wei
- State Key Laboratory of Biochemical Engineering
- PLA Key Laboratory of Biopharmaceutical Production & Formulation Engineering
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
| | - Youbin Wu
- Yichang Humanwell Pharmaceutical Co., Ltd
- Yichang 443008
- P. R. China
| | - Kang Wen
- State Key Laboratory of Biochemical Engineering
- PLA Key Laboratory of Biopharmaceutical Production & Formulation Engineering
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
| | - Nardana Bazybek
- State Key Laboratory of Biochemical Engineering
- PLA Key Laboratory of Biopharmaceutical Production & Formulation Engineering
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
| | - Guanghui Ma
- State Key Laboratory of Biochemical Engineering
- PLA Key Laboratory of Biopharmaceutical Production & Formulation Engineering
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
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33
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Khorshidi S, Karkhaneh A, Bonakdar S. Fabrication of amine‐decorated nonspherical microparticles with calcium peroxide cargo for controlled release of oxygen. J Biomed Mater Res A 2019; 108:136-147. [DOI: 10.1002/jbm.a.36799] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 08/29/2019] [Accepted: 09/03/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Sajedeh Khorshidi
- Department of Biomedical EngineeringAmirkabir University of Technology (Tehran Polytechnic) Tehran Iran
| | - Akbar Karkhaneh
- Department of Biomedical EngineeringAmirkabir University of Technology (Tehran Polytechnic) Tehran Iran
| | - Shahin Bonakdar
- National Cell Bank DepartmentPasteur Institute of Iran Tehran Iran
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34
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Lu Z, Jiang X, Chen M, Feng L, Kang YJ. An oxygen-releasing device to improve the survival of mesenchymal stem cells in tissue engineering. Biofabrication 2019; 11:045012. [PMID: 31315098 DOI: 10.1088/1758-5090/ab332a] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Supplying oxygen to inner areas of cell constructs to support cell proliferation and metabolism is a major challenge in tissue engineering involving stem cells. Developing devices that incorporate oxygen release materials to increase the availability of the localized oxygen supply is therefore key to addressing this limitation. Herein, we designed and developed a 3D-printed oxygen-releasing device composed of an alginate hydrogel scaffold combined with an oxygen-generating biomaterial (calcium peroxide) to improve the oxygen supply of the microenvironment for culturing adipose tissue-derived stem cells. The results demonstrated that the 3D-printed oxygen-releasing device alleviated hypoxia, maintained oxygen availability, and ensured proliferation of the embedded cells, whilst also reducing hypoxia-induced apoptosis. The introduction of this 3D-printed oxygen-releasing device could enhance the survival of embedded stem cells.
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35
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Zhang M, Kiratiwongwan T, Shen W. Oxygen‐releasing polycaprolactone/calcium peroxide composite microspheres. J Biomed Mater Res B Appl Biomater 2019; 108:1097-1106. [DOI: 10.1002/jbm.b.34461] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 07/03/2019] [Accepted: 07/24/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Mengen Zhang
- Department of Biomedical Engineering University of Minnesota Minneapolis Minnesota
| | - Tawan Kiratiwongwan
- Department of Biomedical Engineering University of Minnesota Minneapolis Minnesota
| | - Wei Shen
- Department of Biomedical Engineering University of Minnesota Minneapolis Minnesota
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36
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Ashammakhi N, Darabi MA, Kehr NS, Erdem A, Hu SK, Dokmeci MR, Nasr AS, Khademhosseini A. Advances in Controlled Oxygen Generating Biomaterials for Tissue Engineering and Regenerative Therapy. Biomacromolecules 2019; 21:56-72. [DOI: 10.1021/acs.biomac.9b00546] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Nureddin Ashammakhi
- Center for Minimally
Invasive Therapeutics (C-MIT), University of California−Los Angeles, Los Angeles, California 90095, United States
- Department of Radiological Sciences, David Geffen School of Medicine, University of California−Los Angeles, Los Angeles, California 90095, United States
- Department of Bioengineering, University of California−Los Angeles, Los Angeles, California 90095, United States
- California NanoSystems
Institute (CNSI), University of California−Los Angeles, Los Angeles, California 90095, United States
| | - Mohammad Ali Darabi
- Center for Minimally
Invasive Therapeutics (C-MIT), University of California−Los Angeles, Los Angeles, California 90095, United States
- Department of Radiological Sciences, David Geffen School of Medicine, University of California−Los Angeles, Los Angeles, California 90095, United States
- Department of Bioengineering, University of California−Los Angeles, Los Angeles, California 90095, United States
- California NanoSystems
Institute (CNSI), University of California−Los Angeles, Los Angeles, California 90095, United States
| | - Nermin Seda Kehr
- Center for Minimally
Invasive Therapeutics (C-MIT), University of California−Los Angeles, Los Angeles, California 90095, United States
- Department of Bioengineering, University of California−Los Angeles, Los Angeles, California 90095, United States
- California NanoSystems
Institute (CNSI), University of California−Los Angeles, Los Angeles, California 90095, United States
- Physikalisches Institut
and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Busse-Peus-Strasse 10, 48149 Münster, Germany
| | - Ahmet Erdem
- Center for Minimally
Invasive Therapeutics (C-MIT), University of California−Los Angeles, Los Angeles, California 90095, United States
- Department of Bioengineering, University of California−Los Angeles, Los Angeles, California 90095, United States
- California NanoSystems
Institute (CNSI), University of California−Los Angeles, Los Angeles, California 90095, United States
- Department of Chemistry, Kocaeli University, Umuttepe Campus, 41380 Kocaeli, Turkey
- Department of Biomedical Engineering, Kocaeli University, Umuttepe Campus, 41380 Kocaeli, Turkey
| | - Shu-kai Hu
- Center for Minimally
Invasive Therapeutics (C-MIT), University of California−Los Angeles, Los Angeles, California 90095, United States
- Department of Bioengineering, University of California−Los Angeles, Los Angeles, California 90095, United States
- California NanoSystems
Institute (CNSI), University of California−Los Angeles, Los Angeles, California 90095, United States
- Physikalisches Institut
and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Busse-Peus-Strasse 10, 48149 Münster, Germany
| | - Mehmet R. Dokmeci
- Center for Minimally
Invasive Therapeutics (C-MIT), University of California−Los Angeles, Los Angeles, California 90095, United States
- Department of Radiological Sciences, David Geffen School of Medicine, University of California−Los Angeles, Los Angeles, California 90095, United States
- Department of Bioengineering, University of California−Los Angeles, Los Angeles, California 90095, United States
- California NanoSystems
Institute (CNSI), University of California−Los Angeles, Los Angeles, California 90095, United States
| | - Ali S. Nasr
- Division of Cardiothoracic Surgery, Department of Surgery, University of Iowa Hospitals and Clinics, Carver College of Medicine, University of Iowa, Iowa City, Iowa 52242, United States
| | - Ali Khademhosseini
- Center for Minimally
Invasive Therapeutics (C-MIT), University of California−Los Angeles, Los Angeles, California 90095, United States
- Department of Radiological Sciences, David Geffen School of Medicine, University of California−Los Angeles, Los Angeles, California 90095, United States
- Department of Bioengineering, University of California−Los Angeles, Los Angeles, California 90095, United States
- California NanoSystems
Institute (CNSI), University of California−Los Angeles, Los Angeles, California 90095, United States
- Department of Chemical Engineering, University of California−Los Angeles, Los Angeles, California 90095, United States
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Zhang T, Han Z, Zhang W, Wang J, Xu L. Cyanoacrylate-encapsulated calcium peroxide achieved oxygen-sustained release and promoted wound healing. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2019.1600518] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Tao Zhang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Zeye Han
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Wei Zhang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Jian Wang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Liang Xu
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
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38
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Yang GCC. Integrated electrokinetic processes for the remediation of phthalate esters in river sediments: A mini-review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 659:963-972. [PMID: 31096426 DOI: 10.1016/j.scitotenv.2018.12.334] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 11/29/2018] [Accepted: 12/22/2018] [Indexed: 06/09/2023]
Abstract
Concerning the contamination of phthalate esters (PAEs) in river sediments, this mini-review introduces four recently reported novel "integrated electrokinetic (EK) processes" for the remediation purpose, namely two combined technologies of the EK process and advanced oxidation process (EK-AOP Processes) and two combined technologies of the EK process and biological process (EK-BIO Processes). The following is a comprehensive summary for these remediation processes: (1) the EK process coupled with nano-Fe3O4/S2O82- oxidation process - Test results have shown that nanoscale Fe3O4 played a significant role in activating persulfate oxidation. Even a recalcitrant compound like di(2‑ethylhexyl)phthalate (DEHP), its concentration in test sediment was reduced to 1.97 mg kg-1, far below the regulatory levels set by Taiwan EPA; (2) the EK process integrated with a novel Fenton-like process catalyzed by nanoscale schwertmannite (nano-SHM) - Test results have revealed that simultaneous injection of nano-SHM slurry and H2O2 into the anode reservoir and sediment compartment is a good practice. 70-99% in removal efficiency was obtained for various target PAEs; (3) enhanced in situ bioremediation coupled with the EK process for promoting the growth of intrinsic microorganisms by adding H2O2 as an oxygen release compound (ORC) - Test results have demonstrated that an intermittent mode of injecting lab-prepared ORC directly into the contaminant zone would be beneficial to the growth of intrinsic microorganisms in test sediment for in situ bioremediation of target PAEs; and (4) coupling of a second-generation ORC (designated 2G-ORC) with the EK-biological process - Test results have proved that 2G-ORC is long-lasting and can be directly utilized as the carbon source and oxygen source for microbial growth resulting in an enhanced biodegradation of PAEs. Except DEHP having a residual concentration of 4 μg kg-1, all other target PAEs in test sediment were totally removed by this novel combined remediation process.
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Affiliation(s)
- Gordon C C Yang
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan.
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39
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Nova MV, Nothnagel L, Thurn M, Travassos PB, Herculano LS, Bittencourt PR, Novello CR, Bazotte RB, Wacker MG, Bruschi ML. Development study of pectin/Surelease® solid microparticles for the delivery of L-alanyl-L-glutamine dipeptide. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2018.11.038] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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40
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Preparation of ropivacaine loaded PLGA microspheres as controlled-release system with narrow size distribution and high loading efficiency. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2018.11.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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41
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Fabrication of Oxygen Releasing Scaffold by Embedding H2O2-PLGA Microspheres into Alginate-Based Hydrogel Sponge and Its Application for Wound Healing. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8091492] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In the regeneration process for new tissues, oxygen promotes re-epithelialization and healing of infected wounds, increases keratinocyte differentiation, proliferation and migration of fibroblast, and induces angiogenesis, collagen synthesis and wound contraction. Therefore, provision of oxygen to cells and tissues at an optimal level is critical for effective tissue regeneration and wound healing. In this study, we developed sustained oxygen-releasing polymeric microspheres and fabricated a sponge type dressing by embedding the microspheres into alginate-based hydrogel that can supply oxygen to wounds. We further investigated the applicability of the microspheres and hydrogel sponge to wound healing in vitro and in vivo. Oxygen-releasing microspheres (ORM) were made by incorporating hydrogen peroxide (H2O2) into poly(lactic-co-glycolic acid) (PLGA) using double emulsion method. H2O2-PLGA microspheres were embedded into alginate-based hydrogel to form a porous oxygen-releasing hydrogel sponge (ORHS). Biocompatibility was performed using cell counting kit-8. The oxygen release kinetic study was performed using a hydrogen peroxide assay kit and oxygen meter. The wound healing potential of ORHS was evaluated using the wound scratch model. In vivo studies were carried out to investigate the safety and efficacy of the ORHS for wound healing. Experimental results confirmed that oxygen released from ORMand ORHS induced neovascularization and promoted cell proliferation thereby facilitating effective wound healing. It is suggested that the ORM can be used for supplying oxygen to where cells and tissues are deprived of necessary oxygen, and ORHS is an intelligent scaffold to effectively heal wound by enhanced angiogenesis by oxygen. Conclusively, oxygen releasing polymeric microspheres and hydrogel scaffolds have potential for a variety of tissue engineering applications, where require oxygen.
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42
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Jiang Y, Zhang X, Mu H, Hua H, Duan D, Yan X, Wang Y, Meng Q, Lu X, Wang A, Liu W, Li Y, Sun K. Preparation and evaluation of injectable Rasagiline mesylate dual-controlled drug delivery system for the treatment of Parkinson's disease. Drug Deliv 2018; 25:143-152. [PMID: 29275639 PMCID: PMC6058670 DOI: 10.1080/10717544.2017.1419514] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
A microsphere-gel in situ forming implant (MS-Gel ISFI) dual-controlled drug delivery system was applied to a high water-soluble small-molecule compound Rasagiline mesylate (RM) for effective treatment of Parkinson's disease. This injectable complex depot system combined an in situ phase transition gel with high drug-loading and encapsulation efficiency RM-MS prepared by a modified emulsion-phase separation method and optimized by Box-Behnken design. It was evaluated for in vitro drug release, in vivo pharmacokinetics, and in vivo pharmacodynamics. We found that the RM-MS-Gel ISFI system showed no initial burst release and had a long period of in vitro drug release (60 days). An in vivo pharmacokinetic study indicated a significant reduction (p < .01) in the initial high plasma drug concentration of the RM-MS-Gel ISFI system compared to that of the single RM-MS and RM-in situ gel systems after intramuscular injection to rats. A pharmacodynamic study demonstrated a significant reduction (p < .05) in 6-hydroxydopamine-induced contralateral rotation behavior and an effective improvement (p < .05) in dopamine levels in the striatum of the lesioned side after 28 days in animals treated with the RM-MS-Gel ISFI compared with that of animals treated with saline. MS-embedded in situ phase transition gel is superior for use as a biodegradable and injectable sustained drug delivery system with a low initial burst and long period of drug release for highly hydrophilic small molecule drugs.
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Affiliation(s)
- Ying Jiang
- a School of Pharmacy , Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University , Yantai , Shandong Province , PR China
| | - Xuemei Zhang
- a School of Pharmacy , Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University , Yantai , Shandong Province , PR China.,b State Key Laboratory of Long-Acting and Targeting Drug Delivery System , Shandong Luye Pharmaceutical Co., Ltd , Yantai , Shandong Province , PR China
| | - Hongjie Mu
- a School of Pharmacy , Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University , Yantai , Shandong Province , PR China
| | - Hongchen Hua
- a School of Pharmacy , Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University , Yantai , Shandong Province , PR China
| | - Dongyu Duan
- a School of Pharmacy , Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University , Yantai , Shandong Province , PR China
| | - Xiuju Yan
- a School of Pharmacy , Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University , Yantai , Shandong Province , PR China
| | - Yiyun Wang
- a School of Pharmacy , Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University , Yantai , Shandong Province , PR China
| | - Qingqing Meng
- a School of Pharmacy , Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University , Yantai , Shandong Province , PR China
| | - Xiaoyan Lu
- a School of Pharmacy , Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University , Yantai , Shandong Province , PR China
| | - Aiping Wang
- a School of Pharmacy , Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University , Yantai , Shandong Province , PR China
| | - Wanhui Liu
- a School of Pharmacy , Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University , Yantai , Shandong Province , PR China.,b State Key Laboratory of Long-Acting and Targeting Drug Delivery System , Shandong Luye Pharmaceutical Co., Ltd , Yantai , Shandong Province , PR China
| | - Youxin Li
- a School of Pharmacy , Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University , Yantai , Shandong Province , PR China.,b State Key Laboratory of Long-Acting and Targeting Drug Delivery System , Shandong Luye Pharmaceutical Co., Ltd , Yantai , Shandong Province , PR China
| | - Kaoxiang Sun
- a School of Pharmacy , Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University , Yantai , Shandong Province , PR China
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43
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Wang B, Lin W, Mao Z, Gao C. Near-infrared light triggered photothermal therapy and enhanced photodynamic therapy with a tumor-targeting hydrogen peroxide shuttle. J Mater Chem B 2018; 6:3145-3155. [PMID: 32254349 DOI: 10.1039/c8tb00476e] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2024]
Abstract
Hypoxia, defined as inadequate oxygen supply at the tissue level, is a common pathological condition in the tumor microenvironment of certain solid tumors, leading to the limited efficiency of oxygen-dependent photodynamic therapy (PDT). To overcome this problem, tumor-targeting oxygen self-carrying nanoparticles are developed for photothermal therapy (PTT) and enhanced PDT to completely eradicate solid tumors. Hydrogen peroxide (H2O2) is a strong oxidant that can release oxygen in the presence of a catalyst or when being heated. The core-shell poly(lactic-co-glycolic acid) nanoparticles (PLGA NPs) are obtained by a double emulsion method: the hydrophilic H2O2/poly(vinylpyrrolidone) complex as an oxygen source and hydrophobic IR780 as a PTT/PDT agent are encapsulated into the core and shell of the NPs respectively. The tumor binding molecule, folic acid, is conjugated onto the surface of obtained PLGA NPs to enabling efficient cell uptake and tumor targeting. Once the PLGA-FA/IR780-H2O2 NPs are ingested by HepG2 cells, they can induce the photothermal effect and reactive oxygen species (ROS) are released to kill cancer cells under an 808 nm laser irradiation. The encapsulated H2O2 can supply additional oxygen and in turn significantly enhance the PDT effect. This innovative nanoplatform has exhibited excellent antitumor efficiency, verified vividly by the in vitro and in vivo assays, and may serve as a versatile platform for future cancer therapy.
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Affiliation(s)
- Bing Wang
- Department of Polymer Materials, Zhejiang Sci-Tech University, Hangzhou 310018, China.
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44
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Bee SL, Hamid ZAA, Mariatti M, Yahaya BH, Lim K, Bee ST, Sin LT. Approaches to Improve Therapeutic Efficacy of Biodegradable PLA/PLGA Microspheres: A Review. POLYM REV 2018. [DOI: 10.1080/15583724.2018.1437547] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Soo-Ling Bee
- School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Penang, Malaysia
| | - Z. A. Abdul Hamid
- School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Penang, Malaysia
| | - M. Mariatti
- School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Penang, Malaysia
| | - B. H. Yahaya
- Regenerative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Penang, Malaysia
| | - Keemi Lim
- School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Penang, Malaysia
| | - Soo-Tueen Bee
- Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Jalan Sungai Long, Bandar Sungai Long, Cheras, Kajang, Selangor, Malaysia
| | - Lee Tin Sin
- Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Jalan Sungai Long, Bandar Sungai Long, Cheras, Kajang, Selangor, Malaysia
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45
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An Injectable Oxygen Release System to Augment Cell Survival and Promote Cardiac Repair Following Myocardial Infarction. Sci Rep 2018; 8:1371. [PMID: 29358595 PMCID: PMC5778078 DOI: 10.1038/s41598-018-19906-w] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 01/10/2018] [Indexed: 01/15/2023] Open
Abstract
Oxygen deficiency after myocardial infarction (MI) leads to massive cardiac cell death. Protection of cardiac cells and promotion of cardiac repair are key therapeutic goals. These goals may be achieved by re-introducing oxygen into the infarcted area. Yet current systemic oxygen delivery approaches cannot efficiently diffuse oxygen into the infarcted area that has extremely low blood flow. In this work, we developed a new oxygen delivery system that can be delivered specifically to the infarcted tissue, and continuously release oxygen to protect the cardiac cells. The system was based on a thermosensitive, injectable and fast gelation hydrogel, and oxygen releasing microspheres. The fast gelation hydrogel was used to increase microsphere retention in the heart tissue. The system was able to continuously release oxygen for 4 weeks. The released oxygen significantly increased survival of cardiac cells under the hypoxic condition (1% O2) mimicking that of the infarcted hearts. It also reduced myofibroblast formation under hypoxic condition (1% O2). After implanting into infarcted hearts for 4 weeks, the released oxygen significantly augmented cell survival, decreased macrophage density, reduced collagen deposition and myofibroblast density, and stimulated tissue angiogenesis, leading to a significant increase in cardiac function.
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46
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de Francisco LMB, Pinto D, Rosseto HC, de Toledo LDAS, dos Santos RS, Costa P, Rodrigues F, Oliveira MBPP, Sarmento B, Bruschi ML. Development of a microparticulate system containing Brazilian propolis by-product and gelatine for ascorbic acid delivery: evaluation of intestinal cell viability and radical scavenging activity. Food Funct 2018; 9:4194-4206. [DOI: 10.1039/c8fo00863a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The use of propolis by-product (PBP) microparticles (MP) as delivery systems can be a promising tool to surpass drawbacks related to low stability of ascorbic acid (AA).
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Affiliation(s)
- Lizziane Maria Belloto de Francisco
- Postgraduate Program in Pharmaceutical Sciences
- Laboratory of Research and Development of Drug Delivery Systems
- Department of Pharmacy
- State University of Maringá
- 87020-900 Maringá
| | - Diana Pinto
- LAQV/REQUIMTE
- Department of Chemical Sciences
- Faculty of Pharmacy
- University of Porto
- 4050-313 Porto
| | - Hélen Cássia Rosseto
- Postgraduate Program in Pharmaceutical Sciences
- Laboratory of Research and Development of Drug Delivery Systems
- Department of Pharmacy
- State University of Maringá
- 87020-900 Maringá
| | - Lucas de Alcântara Sica de Toledo
- Postgraduate Program in Pharmaceutical Sciences
- Laboratory of Research and Development of Drug Delivery Systems
- Department of Pharmacy
- State University of Maringá
- 87020-900 Maringá
| | - Rafaela Said dos Santos
- Postgraduate Program in Pharmaceutical Sciences
- Laboratory of Research and Development of Drug Delivery Systems
- Department of Pharmacy
- State University of Maringá
- 87020-900 Maringá
| | - Paulo Costa
- Laboratory of Pharmaceutical Technology
- Department of Medicinal Sciences
- Faculty of Pharmacy
- University of Porto
- 4050-313 Porto
| | - Francisca Rodrigues
- LAQV/REQUIMTE
- Department of Chemical Sciences
- Faculty of Pharmacy
- University of Porto
- 4050-313 Porto
| | | | - Bruno Sarmento
- i3S – Instituto de Investigação e Inovação em Saúde
- University of Porto
- 4200-135 Porto
- Portugal
- iNEB – Instituto de Engenharia Biomédica
| | - Marcos Luciano Bruschi
- Postgraduate Program in Pharmaceutical Sciences
- Laboratory of Research and Development of Drug Delivery Systems
- Department of Pharmacy
- State University of Maringá
- 87020-900 Maringá
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47
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Villa Nova M, Ratti BA, Herculano LS, Bittencourt PRS, Novello CR, Bazotte RB, Lautenschlager SDOS, Bruschi ML. Design of composite microparticle systems based on pectin and waste material of propolis for modified l-alanyl-l-glutamine release and with immunostimulant activity. Pharm Dev Technol 2017; 24:12-23. [DOI: 10.1080/10837450.2017.1410556] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mônica Villa Nova
- Postgraduate Program in Pharmaceutical Sciences, Laboratory of Research and Development of Drug Delivery Systems, Department of Pharmacy, State University of Maringa, Maringa, Parana, Brazil
| | - Bianca A. Ratti
- Postgraduate Program in Biosciences and Physiopathology, Department of Basic Sciences of Health, State University of Maringa, Maringa, Parana, Brazil
| | - Leandro S. Herculano
- Department of Physics, Federal University of Technology, Medianeira, Parana, Brazil
| | | | - Cláudio R. Novello
- Academic Department of Chemistry and Biology, Federal University of Technology, Francisco Beltrão, Parana, Brazil
| | - Roberto Barbosa Bazotte
- Postgraduate Program in Pharmaceutical Sciences, Laboratory of Research and Development of Drug Delivery Systems, Department of Pharmacy, State University of Maringa, Maringa, Parana, Brazil
| | - Sueli de Oliveira Silva Lautenschlager
- Postgraduate Program in Pharmaceutical Sciences, Laboratory of Research and Development of Drug Delivery Systems, Department of Pharmacy, State University of Maringa, Maringa, Parana, Brazil
- Postgraduate Program in Biosciences and Physiopathology, Department of Basic Sciences of Health, State University of Maringa, Maringa, Parana, Brazil
| | - Marcos Luciano Bruschi
- Postgraduate Program in Pharmaceutical Sciences, Laboratory of Research and Development of Drug Delivery Systems, Department of Pharmacy, State University of Maringa, Maringa, Parana, Brazil
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48
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Sofokleous P, Ali S, Wilson P, Buanz A, Gaisford S, Mistry D, Fellows A, Day RM. Sustained antimicrobial activity and reduced toxicity of oxidative biocides through biodegradable microparticles. Acta Biomater 2017; 64:301-312. [PMID: 28986301 PMCID: PMC5692019 DOI: 10.1016/j.actbio.2017.10.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 09/16/2017] [Accepted: 10/02/2017] [Indexed: 02/04/2023]
Abstract
The spread of antibiotic-resistant pathogens requires new treatments. Small molecule precursor compounds that produce oxidative biocides with well-established antimicrobial properties could provide a range of new therapeutic products to combat resistant infections. The aim of this study was to investigate a novel biomaterials-based approach for the manufacture, targeted delivery and controlled release of a peroxygen donor (sodium percarbonate) combined with an acetyl donor (tetraacetylethylenediamine) to deliver local antimicrobial activity via a dynamic equilibrium mixture of hydrogen peroxide and peracetic acid. Entrapment of the pre-cursor compounds into hierarchically structured degradable microparticles was achieved using an innovative dry manufacturing process involving thermally induced phase separation (TIPS) that circumvented compound decomposition associated with conventional microparticle manufacture. The microparticles provided controlled release of hydrogen peroxide and peracetic acid that led to rapid and sustained killing of multiple drug-resistant organisms (methicillin-resistant Staphylococcus aureus and carbapenem-resistant Escherichia coli) without associated cytotoxicity in vitro nor intracutaneous reactivity in vivo. The results from this study demonstrate for the first time that microparticles loaded with acetyl and peroxygen donors retain their antimicrobial activity whilst eliciting no host toxicity. In doing so, it overcomes the detrimental effects that have prevented oxidative biocides from being used as alternatives to conventional antibiotics. STATEMENT OF SIGNIFICANCE The manuscript explores a novel approach to utilize the antimicrobial activity of oxidative species for sustained killing of multiple drug-resistant organisms without causing collateral tissue damage. The results demonstrate, for the first time, the ability to load pre-cursor compounds into porous polymeric structures that results in their release and conversion into oxidative species in a controlled manner. Until now, the use of oxidative species has not been considered as a candidate therapeutic replacement for conventional antibiotics due to difficulties associated with handling during manufacture and controlling sustained release without causing undesirable tissue damage. The ultimate impact of the research could be the creation of new materials-based anti-infective chemotherapeutic agents that have minimal potential for giving rise to antimicrobial resistance.
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Affiliation(s)
| | - Shanom Ali
- Environmental Research Laboratory, University College Hospital, 235 Euston Road, London NW1 2BU, UK
| | - Peter Wilson
- Environmental Research Laboratory, University College Hospital, 235 Euston Road, London NW1 2BU, UK
| | - Asma Buanz
- School of Pharmacy, University College London, Brunswick Square, London WC1N 1AX, UK
| | - Simon Gaisford
- School of Pharmacy, University College London, Brunswick Square, London WC1N 1AX, UK
| | | | | | - Richard M Day
- Division of Medicine, University College London, Gower Street, London WC1E 6BT, UK.
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49
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Li G, Yao L, Li J, Qin X, Qiu Z, Chen W. Preparation of poly(lactide-co-glycolide) microspheres and evaluation of pharmacokinetics and tissue distribution of BDMC-PLGA-MS in rats. Asian J Pharm Sci 2017; 13:82-90. [PMID: 32104381 PMCID: PMC7032131 DOI: 10.1016/j.ajps.2017.09.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 09/01/2017] [Accepted: 09/20/2017] [Indexed: 12/18/2022] Open
Abstract
The aim of the present study was to develop a novel long-acting Poly (lactic-co-glycolic acid) (PLGA)-based microspheres formulation of Bisdemethoxycurcum (BDMC) by emulsion-solvent evaporation method. Meanwhile, the effects of the volume ratio of the dispersed phase and continuous phase, the concentration of PLGA and PVA, the theoretical drug loading and stirring speed were investigated. The mean diameter of the microspheres was 8.5 µm and the size distribution was narrow. The encapsulation efficiency (EE) and drug loading efficiency (DLE) of BDME loaded PLGA microspheres (BDMC-PLGA-MS) was 94.18% and 8.14%, respectively. In an in vitro study of drug release, it can be concluded that the BDMC-PLGA-MS exhibited sustained and long-term release properties for 96 h. Stability studies suggested that the microspheres we prepared had a very good stability. Furthermore, the results of an in vivo study indicated that the BDMC-PLGA-MS had sustained release effect and was mainly distributed in the lung tissue, and less distribution in other tissues, which indicated that microspheres could be an effective parenteral carrier for the delivery of BDMC in lung cancer treatment.
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Affiliation(s)
- Guozhuan Li
- Anhui University of Chinese Medicine, Xiangshan Road, Hefei 230012, China
| | - Liang Yao
- Anhui University of Chinese Medicine, Xiangshan Road, Hefei 230012, China
| | - Jing Li
- Anhui University of Chinese Medicine, Xiangshan Road, Hefei 230012, China
| | - Xiaoyan Qin
- Hefei First People's Hospital, Hefei, 230038, China
| | - Zhen Qiu
- Anhui University of Chinese Medicine, Xiangshan Road, Hefei 230012, China
| | - Weidong Chen
- Anhui University of Chinese Medicine, Xiangshan Road, Hefei 230012, China
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Ryoo D, Xu X, Li Y, Tang JA, Zhang J, van Zijl PCM, Liu G. Detection and Quantification of Hydrogen Peroxide in Aqueous Solutions Using Chemical Exchange Saturation Transfer. Anal Chem 2017; 89:7758-7764. [PMID: 28627877 PMCID: PMC5779864 DOI: 10.1021/acs.analchem.7b01763] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The development of new analytical methods to accurately quantify hydrogen peroxide is of great interest. In the current study, we developed a new magnetic resonance (MR) method for noninvasively quantifying hydrogen peroxide (H2O2) in aqueous solutions based on chemical exchange saturation transfer (CEST), an emerging MRI contrast mechanism. Our method can detect H2O2 by its specific CEST signal at ∼6.2 ppm downfield from water resonance, with more than 1000 times signal amplification compared to the direct NMR detection. To improve the accuracy of quantification, we comprehensively investigated the effects of sample properties on CEST detection, including pH, temperature, and relaxation times. To accelerate the NMR measurement, we implemented an ultrafast Z-spectroscopic (UFZ) CEST method to boost the acquisition speed to 2 s per CEST spectrum. To accurately quantify H2O2 in unknown samples, we also implemented a standard addition method, which eliminated the need for predetermined calibration curves. Our results clearly demonstrate that the presented CEST-based technique is a simple, noninvasive, quick, and accurate method for quantifying H2O2 in aqueous solutions.
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Affiliation(s)
- David Ryoo
- F. M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, Maryland
- Department of Radiology, Johns Hopkins University, Baltimore, Maryland 21205, United States
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21205, United States
| | - Xiang Xu
- F. M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, Maryland
- Department of Radiology, Johns Hopkins University, Baltimore, Maryland 21205, United States
| | - Yuguo Li
- F. M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, Maryland
- Department of Radiology, Johns Hopkins University, Baltimore, Maryland 21205, United States
| | - Joel A. Tang
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21205, United States
| | - Jia Zhang
- F. M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, Maryland
- Department of Radiology, Johns Hopkins University, Baltimore, Maryland 21205, United States
| | - Peter C. M. van Zijl
- F. M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, Maryland
- Department of Radiology, Johns Hopkins University, Baltimore, Maryland 21205, United States
| | - Guanshu Liu
- F. M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, Maryland
- Department of Radiology, Johns Hopkins University, Baltimore, Maryland 21205, United States
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