1
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Yu S, Peng G, Jiao J, Liu P, Li H, Xi J, Wu D. Chitin nanocrystals-stabilized emulsion as template for fabricating injectable suspension containing polylactide hollow microspheres. Carbohydr Polym 2024; 337:122176. [PMID: 38710562 DOI: 10.1016/j.carbpol.2024.122176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 05/08/2024]
Abstract
One of the promising applications of rod-like chitin nanocrystals (ChNCs) is the use as particle emulsifier to develop Pickering emulsions. We reported a ChNC-stabilized oil-in-water emulsion system, and developed a Pickering emulsion-templated method to prepare polylactide (PLA) hollow microspheres here. The results showed that both non-modified ChNCs and acetylated ChNCs could well emulsify the dichloromethane (DCM) solution of PLA-in-aqueous mannitol solution systems, forming very stable emulsions. At the same oil-to-water ratios and ChNC loadings, the emulsion stability was improved with increasing acetylation levels of ChNCs, accompanied by reduced size of droplets. Through the solvent evaporation, the PLA hollow microspheres were templated successfully, and the surface structure was also strongly dependent on the acetylation level of ChNCs. At a low level of acetylation, the single-hole or multi-hole surface structure formed, which was attributed to the out-diffusion of DCM caused by the solvent extraction and evaporation. These surface defects decreased with increased acetylation levels of ChNCs. Moreover, the aqueous suspension with as-obtained PLA microspheres revealed shear-thinning property and good biocompatibility, thereby had promising application as injectable fillers. This work can provide useful information around tuning surface structures of the Pickering emulsion-templated polymer hollow microspheres by regulating acetylation level of ChNCs.
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Affiliation(s)
- Sumin Yu
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu Province 225002, PR China
| | - Guangni Peng
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu Province 225002, PR China
| | - Jiali Jiao
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu Province 225002, PR China
| | - Peng Liu
- Shanghai Isiris Medical Co. Ltd., Shanghai 201400, PR China
| | - Huajun Li
- Medical College, Yangzhou University, Yangzhou, Jiangsu Province 225002, PR China
| | - Juqun Xi
- Medical College, Yangzhou University, Yangzhou, Jiangsu Province 225002, PR China
| | - Defeng Wu
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu Province 225002, PR China.
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2
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Wang P, Wang M, Wei X, Xie L, Tian L, Yang Z, Zhou Z, Chen H. In vitro and in vivo degradation profile, biocompatibility of poly-L-lactic acid porous microspheres. Int J Biol Macromol 2024; 272:132876. [PMID: 38838887 DOI: 10.1016/j.ijbiomac.2024.132876] [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: 01/25/2024] [Revised: 05/14/2024] [Accepted: 06/01/2024] [Indexed: 06/07/2024]
Abstract
The objective of this study is to evaluate the in vitro and in vivo degradation profile and biocompatibility of poly-L-lactic acid (PLLA) porous microspheres (PMs) for their potential application as injectable microcarrier or micro-scaffolds materials in the research and clinical use of craniofacial cartilage repair. In this study, PLLA PMs prepared exhibited spherical shape and uniform surface pores followed by 24-week evaluations for degradation behavior and biocompatibility. In vitro degradation analysis encompassed morphological examination, pH monitoring, molecular weight analysis, thermodynamic assessment, and chemical structure analysis. After 12 weeks of in vitro degradation, PMs maintained a regular porous spherical structure. Molecular weight and glass transition temperature of PLLA PMs decreased over time, accompanying with an initial increase and subsequent decrease in crystallinity. Enzymatic degradation caused morphological changes and accelerated degradation in the in vitro studies. Finally, in vivo evaluations involved subcutaneous implantation of PLLA PMs in rats, demonstrating biocompatibility by enhancing type I and type III collagen regeneration as observed in histological analysis. The results demonstrated that PLLA PMs were able to maintain their spherical structure for 12 weeks, promoting the generation of collagen at the implantation site, meeting the time requirements for craniofacial cartilage repair.
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Affiliation(s)
- Peng Wang
- The Department of Orthopedic Surgery, The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang 453000, China; The Key Laboratory of Biomedical Material, School of Life Science and Technology, Xinxiang Medical Univesity, Xinxiang 453003, China
| | - Mengyuan Wang
- The Key Laboratory of Biomedical Material, School of Life Science and Technology, Xinxiang Medical Univesity, Xinxiang 453003, China
| | - Xiangjuan Wei
- The Department of Orthopedic Surgery, The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang 453000, China
| | - Liqin Xie
- The Key Laboratory of Biomedical Material, School of Life Science and Technology, Xinxiang Medical Univesity, Xinxiang 453003, China
| | - Linqiang Tian
- The Department of Orthopedic Surgery, The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang 453000, China
| | - Zhijun Yang
- The Key Laboratory of Biomedical Material, School of Life Science and Technology, Xinxiang Medical Univesity, Xinxiang 453003, China
| | - Zhimin Zhou
- Biomedical Barriers Research Center, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China.
| | - Hongli Chen
- The Key Laboratory of Biomedical Material, School of Life Science and Technology, Xinxiang Medical Univesity, Xinxiang 453003, China.
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3
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Zhao J, Chen Z, Li X, Tong Z, Xu Z, Feng P, Wang P. Performance assessment of an injectable hyaluronic acid/polylactic acid complex hydrogel with enhanced biological properties as a dermal filler. J Biomed Mater Res A 2024; 112:721-732. [PMID: 38093473 DOI: 10.1002/jbm.a.37653] [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: 07/04/2023] [Revised: 11/16/2023] [Accepted: 11/27/2023] [Indexed: 03/20/2024]
Abstract
Injectable hyaluronic acid (HA) hydrogel plays an important role in dermal filling. However, conventional HA dermal fillers mostly lack bio-functional diversity and frequently cause adverse reactions because of the chemical stiffness of highly modified degree and crosslinker residues. In this study, polylactic acid (PLA) was embedded into HA hydrogel as a bioactive substance and 1,4-butanediol diglycidyl ether was used as a crosslinker to prepare the HA/PLA composite hydrogel with enhanced biocompatibility and biological performance. We aimed to investigate the properties of HA/PLA composite hydrogels as dermal fillers by assessing the rheological properties, surface microstructure, enzymolysis stability, swelling ratio, degradation rate, cytotoxicity, and anti-wrinkle effect on photo-aged skin. The results showed that the stability and stiffness of the composite hydrogel decreased with an increasing amount of PLA, while the in vivo safety of the HA/PLA hydrogel was enhanced, showing no adverse reactions such as edema, redness, or swelling. Moreover, the composite hydrogel with 2 wt% PLA exhibited excellent anti-wrinkle effects, showing the highest collagen production. Thus, the PLA-embedded HA composite hydrogel showed potential as a dermal filler with high safety, easy injectability, and excellent anti-wrinkle effects.
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Affiliation(s)
- Jiajing Zhao
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Ziwei Chen
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Xiaoshuo Li
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Zheren Tong
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Zijin Xu
- College of Pharmacy, Jiangxi Medical College, Shangrao, China
| | - Peishi Feng
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Ping Wang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
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4
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Xie ZY, Xuan J. Advances in heterocycle synthesis through photochemical carbene transfer reactions. Chem Commun (Camb) 2024; 60:2125-2136. [PMID: 38284428 DOI: 10.1039/d3cc06056j] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
Heterocyclic skeletons are commonly found in various bioactive molecules and pharmaceutical compounds, making them crucial in areas such as medicinal chemistry, materials science, and the realm of natural product synthesis. In recent years, the rapid advancements of visible light methodologies in organic synthesis have shown promising potential for the development of light-induced carbene transfer reactions. This is particularly significant as most organic molecules do not absorb visible light. Free carbene, known for its high activity, is frequently utilized for insertion reactions or cyclopropanation reactions. This review focuses on the photochemical strategy for the construction of heterocyclic skeletons, specifically highlighting the methods that employ visible light-promoted carbene transfer reactions.
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Affiliation(s)
- Zi-Yi Xie
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials and Key Laboratory of Functional Inorganic Materials of Anhui Province, College of Chemistry & Chemical Engineering, Anhui University, Hefei, Anhui 230601, People's Republic of China.
| | - Jun Xuan
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials and Key Laboratory of Functional Inorganic Materials of Anhui Province, College of Chemistry & Chemical Engineering, Anhui University, Hefei, Anhui 230601, People's Republic of China.
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Anhui University, Ministry of Education, Hefei, Anhui 230601, People's Republic of China
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5
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Xie C, Yang X, Zheng F, Shi J, Huo C, Wang Z, Reis RL, Kundu SC, Xiao B, Duan L. Facilely printed silk fibroin hydrogel microparticles as injectable long-lasting fillers. Biomater Sci 2024; 12:375-386. [PMID: 37997042 DOI: 10.1039/d3bm01488f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
There is a high demand from aging people for facial fillers with desirable biocompatibility and lasting filling effects to overcome facial depression. Novel injectable regenerated silk fibroin (RSF) microparticles were facilely printed from a glycidyl methacrylate-modified silk fibroin hydrogel to address this issue. The β-sheet content and mechanical properties of the RSF hydrogel can be simply modulated by the number of freeze-thawing cycles, and the swelling rate of the RSF hydrogel in saline was negligible. The printed RSF microparticles were uniform, and their diameter was about 300-500 μm, which could be adjusted by the pore sizes of the printed screens. After the injection with a 26-gauge needle, the size distribution of RSF microparticles had no noticeable variation, suggesting that the microparticles could bear the shear strain without breaking during the injection. The in vitro experiments demonstrated that RSF not only had desirable biocompatibility but also facilitated fibroblast migration. The subcutaneous injection experiments demonstrated that the RSF microparticles formed a lasting spot in the injected site. The tissue sections revealed that the RSF microparticles were still distinct on week 8, and blood vessels formed around the microparticles. These promising data demonstrate that the printed RSF microparticles have great potential for facial rejuvenation.
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Affiliation(s)
- Chunyu Xie
- State Key Laboratory of Resource Insects, College of Sericulture, Textile, and Biomass Sciences, Southwest University, Beibei, Chongqing 400715, China.
| | - Xiao Yang
- State Key Laboratory of Resource Insects, College of Sericulture, Textile, and Biomass Sciences, Southwest University, Beibei, Chongqing 400715, China.
| | - Fan Zheng
- State Key Laboratory of Resource Insects, College of Sericulture, Textile, and Biomass Sciences, Southwest University, Beibei, Chongqing 400715, China.
| | - Jiahao Shi
- State Key Laboratory of Resource Insects, College of Sericulture, Textile, and Biomass Sciences, Southwest University, Beibei, Chongqing 400715, China.
| | - Caixia Huo
- Beijing Green Pharmaceutical Technology Co., Ltd, Fengtai, Beijing 100070, China
| | - Zuyuan Wang
- Beijing Green Pharmaceutical Technology Co., Ltd, Fengtai, Beijing 100070, China
| | - Rui L Reis
- 3Bs Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Barco 4805-017, Guimaraes, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Subhas C Kundu
- 3Bs Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Barco 4805-017, Guimaraes, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Bo Xiao
- State Key Laboratory of Resource Insects, College of Sericulture, Textile, and Biomass Sciences, Southwest University, Beibei, Chongqing 400715, China.
| | - Lian Duan
- State Key Laboratory of Resource Insects, College of Sericulture, Textile, and Biomass Sciences, Southwest University, Beibei, Chongqing 400715, China.
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6
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Rho NK, Kim HJ, Kim HS, Lee W. Needle-Free Jet Injection of Poly-(Lactic Acid) for Atrophic Acne Scars: Literature Review and Report of Clinical Cases. J Clin Med 2024; 13:440. [PMID: 38256575 PMCID: PMC10815974 DOI: 10.3390/jcm13020440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 01/07/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
Acne scars, particularly atrophic ones, present a persistent challenge in cosmetic medicine and surgery, requiring extended and multifaceted treatment approaches. Poly-(lactic acid) injectable fillers show promise in managing atrophic acne scars by stimulating collagen synthesis. However, the utilization of needle-free injectors for delivering poly-(lactic acid) into scars remains an area requiring further exploration. In this article, a summary of the latest advancements in needle-free jet injectors is provided, specifically highlighting the variations in jet-producing mechanisms. This summary emphasizes the differences in how these mechanisms operate, offering insights into the evolving technology behind needle-free injection systems. The literature review revealed documented cases focusing on treating atrophic acne scars using intralesional poly-(lactic acid) injections. The results of these clinical studies could be supported by separate in vitro and animal studies, elucidating the feasible pathways through which this treatment operates. However, there is limited information on the use of needle-free jet injectors for the intradermal delivery of poly-(lactic acid). Clinical cases of atrophic acne scar treatment are presented to explore this novel treatment concept, the needle-free delivery of poly-(lactic acid) using a jet pressure-based injector. The treatment demonstrated efficacy with minimal adverse effects, suggesting its potential for scar treatment. The clinical efficacy was supported by histological evidence obtained from cadaver skin, demonstrating an even distribution of injected particles in all layers of the dermis. In conclusion, we suggest that novel needle-free injectors offer advantages in precision and reduce patient discomfort, contributing to scar improvement and skin rejuvenation. Further comprehensive studies are warranted to substantiate these findings and ascertain the efficacy of this approach in scar treatment on a larger scale.
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Affiliation(s)
- Nark-Kyoung Rho
- Leaders Aesthetic Laser & Cosmetic Surgery Center, Seoul 06014, Republic of Korea
| | - Hyun-Jo Kim
- CNP Skin Clinic, Seoul 06030, Republic of Korea
| | - Hyun-Seok Kim
- Kim Hyun Seok Plastic Surgery Clinic, Seoul 06030, Republic of Korea
| | - Won Lee
- Yonsei E1 Plastic Surgery Clinic, Seoul 06030, Republic of Korea
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7
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Chuang FJ, Wang YW, Chang LR, Chang CY, Cheng HY, Kuo SM. Enhanced skin neocollagenesis through the transdermal delivery of poly-L-lactic acid microparticles by using a needle-free supersonic atomizer. BIOMATERIALS ADVANCES 2023; 154:213619. [PMID: 37703788 DOI: 10.1016/j.bioadv.2023.213619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 08/23/2023] [Accepted: 09/03/2023] [Indexed: 09/15/2023]
Abstract
In this study, a spindle-type nozzle was designed to accelerate poly-L-lactic acid (PLLA) microparticles to supersonic velocities for the transdermal delivery of these microparticles to rats. This approach is needle- and pain-free and enhances skin collagen regeneration. The addition of PLLA microparticles at a concentration of 2 mg/mL did not hinder the growth of 3 T3 fibroblasts and Raw264.7 macrophages. The TNF-α assay revealed no obvious inflammation effect of PLLA microparticles at a concentration of 1 mg/mL. A time-lapse recording revealed that after being cocultured with PLLA microparticles for 24 h, Raw264.7 macrophages gradually approached and surrounded the PLLA microparticles. When 3 T3 fibroblasts were cocultured with Raw264.7 macrophages, which were stimulated using PLLA microparticles, collagen synthesis was increased by approximately 60 % compared with that in samples without PLLA microparticles. In vivo animal experiments indicated that after the transdermal delivery of 10 shots of PLLA microparticles through the supersonic atomizer, no obvious changes or damage to the back skin of Sprague-Dawley rats was observed. More importantly, numerous PLLA microparticles penetrated the rat epidermis into the dermal layer. We found macrophages and fibroblasts present close to the PLLA microparticles. Moreover, only mild or no inflammation reaction was observed. Masson staining revealed that after 6-week implantation, 6 % and 12 % of PLLA microparticles significantly stimulated collagen regeneration in 6-week-old and 32-week-old rats. In addition, picrosirius red staining revealed a significant increase in collagen regeneration, especially for type III collagen, following the 6-week implantation of PLLA microparticles. In summary, this study demonstrated an easy, pain-free, nondestructive approach for introducing PLLA microparticles into the dermal layer by using a supersonic atomizer to stimulate collagen regeneration in vivo.
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Affiliation(s)
- Feng-Ju Chuang
- Department of Electrical Engineering, I-Shou University, Kaohsiung, Taiwan; Department of Biomedical Engineering, I-Shou University, Kaohsiung, Taiwan
| | - Yu-Wen Wang
- Department of Biomedical Engineering, I-Shou University, Kaohsiung, Taiwan
| | - Li-Ren Chang
- Department of Plastic and Reconstructive Surgery, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan; Department of Biomedical Engineering, College of Medical Science and Technology, I-Shou University, Kaohsiung, Taiwan
| | - Ching-Yi Chang
- Department of Biomedical Engineering, I-Shou University, Kaohsiung, Taiwan
| | - Hsia-Ying Cheng
- Indigenous Program of the College of Tourism and Hospitality, I-Shou University, Kaohsiung, Taiwan
| | - Shyh-Ming Kuo
- Department of Biomedical Engineering, I-Shou University, Kaohsiung, Taiwan.
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8
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Oh S, Seo SB, Kim G, Batsukh S, Park CH, Son KH, Byun K. Poly-D,L-Lactic Acid Filler Increases Extracellular Matrix by Modulating Macrophages and Adipose-Derived Stem Cells in Aged Animal Skin. Antioxidants (Basel) 2023; 12:1204. [PMID: 37371934 DOI: 10.3390/antiox12061204] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/28/2023] [Accepted: 05/29/2023] [Indexed: 06/29/2023] Open
Abstract
Poly-D,L-lactic acid (PDLLA) filler corrects soft tissue volume loss by increasing collagen synthesis in the dermis; however, the mechanism is not fully understood. Adipose-derived stem cells (ASCs) are known to attenuate the decrease in fibroblast collagen synthesis that occurs during aging, and nuclear factor (erythroid-derived 2)-like-2 factor (NRF2) increases ASCs survival by inducing M2 macrophage polarization and IL-10 expression. We evaluated the ability of PDLLA to induce collagen synthesis in fibroblasts by modulating macrophages and ASCs in a H2O2-induced cellular senescence model and aged animal skin. PDLLA increased M2 polarization and NRF2 and IL-10 expression in senescence-induced macrophages. Conditioned media from senescent macrophages treated with PDLLA (PDLLA-CMMΦ) reduced senescence and increased proliferation and expression of transforming growth factor-β (TGF-β) and fibroblast growth factor (FGF) 2 in senescence-induced ASCs. Conditioned media from senescent ASCs treated with PDLLA-CMMΦ (PDLLA-CMASCs) increased the expression of collagen 1a1 and collagen 3a1 and reduced the expression of NF-κB and MMP2/3/9 in senescence-induced fibroblasts. Injection of PDLLA in aged animal skin resulted in increased expression of NRF2, IL-10, collagen 1a1, and collagen 3a1 and increased ASCs proliferation in aged animal skin. These results suggest that PDLLA increases collagen synthesis by modulating macrophages to increase NRF2 expression, which stimulates ASCs proliferation and secretion of TGF-β and FGF2. This leads to increased collagen synthesis, which can attenuate aging-induced soft tissue volume loss.
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Affiliation(s)
- Seyeon Oh
- Functional Cellular Networks Laboratory, Graduate School and Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon 21999, Republic of Korea
| | - Suk Bae Seo
- SeoAh Song Dermatologic Clinic, Seoul 05557, Republic of Korea
| | - Gunpoong Kim
- VAIM Co., Ltd., Okcheon 29055, Republic of Korea
| | - Sosorburam Batsukh
- Functional Cellular Networks Laboratory, Graduate School and Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon 21999, Republic of Korea
- Department of Anatomy & Cell Biology, College of Medicine, Gachon University, Incheon 21936, Republic of Korea
| | - Chul-Hyun Park
- Department of Thoracic and Cardiovascular Surgery, Gachon University Gil Medical Center, Gachon University, Incheon 21565, Republic of Korea
| | - Kuk Hui Son
- Department of Thoracic and Cardiovascular Surgery, Gachon University Gil Medical Center, Gachon University, Incheon 21565, Republic of Korea
| | - Kyunghee Byun
- Functional Cellular Networks Laboratory, Graduate School and Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon 21999, Republic of Korea
- Department of Anatomy & Cell Biology, College of Medicine, Gachon University, Incheon 21936, Republic of Korea
- Department of Health Sciences and Technology, Gachon Advanced Institute for Health & Sciences and Technology (GAIHST), Gachon University, Incheon 21999, Republic of Korea
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9
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Chen M, Chen L, Yuan D, Niu L, Hu J, Zhang X, Zhang X, Zhang Y, Zhang X, Ling P, Liu F, Zhang D. Preparation, function, and safety evaluation of a novel degradable dermal filler, the cross-linked poly-γ-glutamic acid hydrogel particles. J Biomed Mater Res B Appl Biomater 2023; 111:1407-1418. [PMID: 36930047 DOI: 10.1002/jbm.b.35245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 02/10/2023] [Accepted: 02/23/2023] [Indexed: 03/18/2023]
Abstract
Poly-γ-glutamic acid (PGA) is a naturally degradable hydrophilic linear microbial polymer with moisturizing, immunogenic, cross-linking, and hydrogel water absorption properties similar to hyaluronic acid, a biomaterial that is commonly used as a dermal filler. To explore the development feasibility of cross-linked PGA as a novel dermal filler, we studied the local skin response to PGA fillers and the effect of various cross-linking preparations on the average longevity of dermal injection. Injection site inflammation and the formation of collagen and elastin were also determined. PGA hydrogel particles prepared using 28% PGA and 10% 1,4-butanediol diglycidyl ether showed optimal filler properties, resistance to moist heat sterilization, and an average filling longevity of 94.7 ± 61.6 days in the dermis of rabbit ears. Local redness and swelling due to filler injection recovered within 14.2 ± 3.6 days. Local tissue necrosis or systemic allergic reactions were not observed, and local collagen formation was promoted. Preliminary results suggested that dermal injection of cross-linked PGA particles appeared safe and effective, suggesting that cross-linked PGA particles could be developed as a new hydrogel dermal filler.
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Affiliation(s)
- Mian Chen
- Shandong Academy of Pharmaceutical Sciences, Key Laboratory of Biopharmaceuticals, Engineering Laboratory of Polysaccharide drugs, National-Local Joint Engineering Laboratory of Polysaccharide drugs, Postdoctoral Scientific Research Workstation, Jinan, China
| | - Lei Chen
- Shandong Academy of Pharmaceutical Sciences, Key Laboratory of Biopharmaceuticals, Engineering Laboratory of Polysaccharide drugs, National-Local Joint Engineering Laboratory of Polysaccharide drugs, Postdoctoral Scientific Research Workstation, Jinan, China
| | - Dandan Yuan
- Shandong Academy of Pharmaceutical Sciences, Key Laboratory of Biopharmaceuticals, Engineering Laboratory of Polysaccharide drugs, National-Local Joint Engineering Laboratory of Polysaccharide drugs, Postdoctoral Scientific Research Workstation, Jinan, China
| | - Linlin Niu
- Shandong Academy of Pharmaceutical Sciences, Key Laboratory of Biopharmaceuticals, Engineering Laboratory of Polysaccharide drugs, National-Local Joint Engineering Laboratory of Polysaccharide drugs, Postdoctoral Scientific Research Workstation, Jinan, China
| | - Jianting Hu
- Shandong Academy of Pharmaceutical Sciences, Key Laboratory of Biopharmaceuticals, Engineering Laboratory of Polysaccharide drugs, National-Local Joint Engineering Laboratory of Polysaccharide drugs, Postdoctoral Scientific Research Workstation, Jinan, China
| | - Xiaoyuan Zhang
- Shandong Academy of Pharmaceutical Sciences, Key Laboratory of Biopharmaceuticals, Engineering Laboratory of Polysaccharide drugs, National-Local Joint Engineering Laboratory of Polysaccharide drugs, Postdoctoral Scientific Research Workstation, Jinan, China
| | - Xiuhua Zhang
- Shandong Academy of Pharmaceutical Sciences, Key Laboratory of Biopharmaceuticals, Engineering Laboratory of Polysaccharide drugs, National-Local Joint Engineering Laboratory of Polysaccharide drugs, Postdoctoral Scientific Research Workstation, Jinan, China
| | - Yanyan Zhang
- Shandong Academy of Pharmaceutical Sciences, Key Laboratory of Biopharmaceuticals, Engineering Laboratory of Polysaccharide drugs, National-Local Joint Engineering Laboratory of Polysaccharide drugs, Postdoctoral Scientific Research Workstation, Jinan, China
| | - Xiangjun Zhang
- Shandong Academy of Pharmaceutical Sciences, Key Laboratory of Biopharmaceuticals, Engineering Laboratory of Polysaccharide drugs, National-Local Joint Engineering Laboratory of Polysaccharide drugs, Postdoctoral Scientific Research Workstation, Jinan, China
| | - Peixue Ling
- Shandong Academy of Pharmaceutical Sciences, Key Laboratory of Biopharmaceuticals, Engineering Laboratory of Polysaccharide drugs, National-Local Joint Engineering Laboratory of Polysaccharide drugs, Postdoctoral Scientific Research Workstation, Jinan, China.,School of Pharmaceutical Sciences, Shandong University, Jinan, China
| | - Fei Liu
- Shandong Academy of Pharmaceutical Sciences, Key Laboratory of Biopharmaceuticals, Engineering Laboratory of Polysaccharide drugs, National-Local Joint Engineering Laboratory of Polysaccharide drugs, Postdoctoral Scientific Research Workstation, Jinan, China.,School of Pharmaceutical Sciences, Shandong University, Jinan, China
| | - Daizhou Zhang
- Shandong Academy of Pharmaceutical Sciences, Key Laboratory of Biopharmaceuticals, Engineering Laboratory of Polysaccharide drugs, National-Local Joint Engineering Laboratory of Polysaccharide drugs, Postdoctoral Scientific Research Workstation, Jinan, China
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10
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Immunologically effective poly(D-lactic acid) nanoparticle enhances anticancer immune response. Sci China Chem 2023. [DOI: 10.1007/s11426-022-1441-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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11
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Wu J, Zhi T, Xing L, Fan Y, Xiong C, Huang D, Xiong Z. Preparation and morphology control of porous microspheres of different crystalline polymers. NEW J CHEM 2023. [DOI: 10.1039/d3nj00549f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
Abstract
Controlling the surface morphology of degradable polymer porous microspheres with alkanes as porogens using the emulsion solvent evaporation method.
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Affiliation(s)
- Jinqiu Wu
- Chinese Academy of Sciences, Chengdu Institute of Organic Chemistry, Chengdu, 610041, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Teng Zhi
- West China School of Pharmacy, Sichuan University, 610041, China
| | - Luyao Xing
- Chinese Academy of Sciences, Chengdu Institute of Organic Chemistry, Chengdu, 610041, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Youkun Fan
- Chinese Academy of Sciences, Chengdu Institute of Organic Chemistry, Chengdu, 610041, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Chengdong Xiong
- Chinese Academy of Sciences, Chengdu Institute of Organic Chemistry, Chengdu, 610041, P. R. China
| | - Dongling Huang
- Chinese Academy of Sciences, Chengdu Institute of Organic Chemistry, Chengdu, 610041, P. R. China
| | - Zuochun Xiong
- Chinese Academy of Sciences, Chengdu Institute of Organic Chemistry, Chengdu, 610041, P. R. China
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Yang W, Xuan C, Liu X, Zhang Q, Wu K, Bian L, Shi X. A sandwiched patch toward leakage-free and anti-postoperative tissue adhesion sealing of intestinal injuries. Bioact Mater 2022; 24:112-123. [PMID: 36582344 PMCID: PMC9760658 DOI: 10.1016/j.bioactmat.2022.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 12/01/2022] [Accepted: 12/02/2022] [Indexed: 12/15/2022] Open
Abstract
Ideal repair of intestinal injury requires a combination of leakage-free sealing and postoperative antiadhesion. However, neither conventional hand-sewn closures nor existing bioglues/patches can achieve such a combination. To this end, we develop a sandwiched patch composed of an inner adhesive and an outer antiadhesive layer that are topologically linked together through a reinforced interlayer. The inner adhesive layer tightly and instantly adheres to the wound sites via -NHS chemistry; the outer antiadhesive layer can inhibit cell and protein fouling based on the zwitterion structure; and the interlayer enhances the bulk resilience of the patch under excessive deformation. This complementary trilayer patch (TLP) possesses a unique combination of instant wet adhesion, high mechanical strength, and biological inertness. Both rat and pig models demonstrate that the sandwiched TLP can effectively seal intestinal injuries and inhibit undesired postoperative tissue adhesion. The study provides valuable insight into the design of multifunctional bioadhesives to enhance the treatment efficacy of intestinal injuries.
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Affiliation(s)
- Wei Yang
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China,School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Chengkai Xuan
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China,School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China,Guangzhou Soonheal Medical Technology. Co, Ltd, Guangzhou, 510230, China
| | - Xuemin Liu
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China,School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Qiang Zhang
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China,School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Kai Wu
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 511442, China
| | - Liming Bian
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China,Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, China,Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, China,School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 511442, China,Corresponding author. National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China.
| | - Xuetao Shi
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China,School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China,Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, China,Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, China,Corresponding author. School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China.
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Ahn GR, Park HJ, Koh YG, Shin SH, Kim YJ, Song MG, Lee JO, Hong HK, Lee KB, Kim BJ. Low-intensity cold atmospheric plasma reduces wrinkles on photoaged skin through hormetic induction of extracellular matrix protein expression in dermal fibroblasts. Lasers Surg Med 2022; 54:978-993. [PMID: 35662062 DOI: 10.1002/lsm.23559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 04/26/2022] [Accepted: 05/08/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND Recent evidence indicates that cold atmospheric plasma (CAP) can upregulate the production of extracellular matrix (ECM) proteins in dermal fibroblasts and enhance transdermal drug delivery when applied at a low intensity. OBJECTIVES The aim of this study was to evaluate the effect of low-intensity CAP (LICAP) on photoaging-induced wrinkles in an animal model and the expression profiles of ECM proteins in human dermal fibroblasts. METHODS Each group was subjected to photoaging induction and allocated to therapy (LICAP, topical polylactic acid (PLA), or both). The wrinkles were evaluated via visual inspection, quantitative analysis, and histology. The expression of collagen I/III and fibronectin was assessed using reverse transcription-quantitative polymerase chain reaction, western blot analysis, and immunofluorescence. The amount of aqueous reactive species produced by LICAP using helium and argon gas was also measured. RESULTS Wrinkles significantly decreased in all treatment groups compared to those in the untreated control. The differences remained significant for at least 4 weeks. Dermal collagen density increased following LICAP and PLA application. LICAP demonstrated a hormetic effect on ECM protein expression in human dermal fibroblasts. The production of reactive species increased, showing a biphasic pattern, with an initial linear phase and a slow saturation phase. The initial linearity was sustained for a longer time in the helium plasma (~60 s) than in the argon plasma (~15 s). CONCLUSION LICAP appears to be a novel treatment option for wrinkles on the photodamaged skin. This treatment effect seems to be related to its hormetic effect on dermal ECM production.
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Affiliation(s)
- Ga Ram Ahn
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Hyung Joon Park
- Department of Interdisciplinary Bio/Micro System Technology, College of Engineering, Korea University, Seoul, Korea
| | - Young Gue Koh
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Sun Hye Shin
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Yu Jin Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Min Gyo Song
- School of Biomedical Engineering, Korea University, Seoul, Korea
| | - Jung Ok Lee
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Hyuck Ki Hong
- Human IT Convergence System R&D Division, Korea Electronics Technology Institute, Seongnam-Si, Gyeonggi-do, Korea
| | - Kyu Back Lee
- Department of Interdisciplinary Bio/Micro System Technology, College of Engineering, Korea University, Seoul, Korea.,School of Biomedical Engineering, Korea University, Seoul, Korea
| | - Beom Joon Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
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Li Y, Liu Y, Liu S, Zhang L, Shao H, Wang X, Zhang W. Photoaging of Baby Bottle-Derived Polyethersulfone and Polyphenylsulfone Microplastics and the Resulting Bisphenol S Release. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:3033-3044. [PMID: 35142490 DOI: 10.1021/acs.est.1c05812] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
This study evaluated the release of bisphenol S (BPS) from polyethersulfone (PES) and polyphenylsulfone microplastics (MPs) derived from baby bottles under UV irradiation. Released BPS fluctuates over time because it undergoes photolysis under UV254 irradiation. Under UV365 irradiation, the highest released concentration at 50 °C was 1.7 and 3.2 times that at 35 and 25 °C, respectively, as the activation energy of the photochemical reactions responsible for MP decay was reduced at high temperatures. Low concentrations of humic acid (HA, ≤10 mg·L-1) promote BPS release because HA acts as a photosensitizer. A high concentration of HA (10∼50 mg·L-1) decreases the BPS release because HA shields MPs from light and scavenges reactive radicals that are produced via photochemical reactions. For example, under UV irradiation, hydroxyl radicals (•OH) attack results in the breakage of ether bonds and the formation of phenyl radicals (Ph•) and phenoxy radicals (Ph-O•).The•OH addition and hydrogen extractions further produce BPS from the decayed MPs. A leaching kinetics model was developed and calibrated by the experimental data. The calibrated model predicts the equilibrium level of BPS release from MPs that varies with the surface coverage density of BPS and leaching rate constants. This study provides groundwork that deepens our understanding of environmental aging and the chemical release of MPs.
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Affiliation(s)
- Yang Li
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Yuan Liu
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Shengdong Liu
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Lilan Zhang
- Key Laboratory of Three Gorges Reservoir Region's Eco-environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Heng Shao
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Xinjie Wang
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Wen Zhang
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
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Zhong H, Deng J. Organic Polymer-Constructed Chiral Particles: Preparation and Chiral Applications. POLYM REV 2022. [DOI: 10.1080/15583724.2022.2033764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Hai Zhong
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, China
| | - Jianping Deng
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, China
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