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Guo J, Fang W, Wang F. Injectable fillers: current status, physicochemical properties, function mechanism, and perspectives. RSC Adv 2023; 13:23841-23858. [PMID: 37577103 PMCID: PMC10413051 DOI: 10.1039/d3ra04321e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 07/17/2023] [Indexed: 08/15/2023] Open
Abstract
With the increasing understanding of the aging process and growing desire for minimally invasive treatments, injectable fillers have great potential for correcting and rejuvenating facial wrinkles/folds and contouring the face. However, considering the increasing availability of multiple soft tissue fillers, it is important to understand their inherent biophysical features and specific mechanism. Thus, in this review, we aim to provide an update on the current injectable filler products and analyze and compare their critical physicochemical properties and function mechanisms for volume-filling. Additionally, future trends and development processes for injectable fillers are also proposed.
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Affiliation(s)
- Jiahong Guo
- Yunnan Botanee Bio-technology Group Co., Ltd. Yunnan 650106 China
- Shanghai Jiyan Bio-pharmaceutical Co., Ltd. Shanghai 201702 China
| | - Wei Fang
- Yunnan Yunke Characteristic Plant Extraction Laboratory Co., Ltd. Yunnan 650106 China
- Medaesthee (Shanghai) Biotechnology Co., Ltd. Shanghai. 201700 China
| | - Feifei Wang
- Yunnan Botanee Bio-technology Group Co., Ltd. Yunnan 650106 China
- Shanghai Jiyan Bio-pharmaceutical Co., Ltd. Shanghai 201702 China
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2
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Antimicrobial-Loaded Polyacrylamide Hydrogels Supported on Titanium as Reservoir for Local Drug Delivery. Pathogens 2023; 12:pathogens12020202. [PMID: 36839473 PMCID: PMC9962340 DOI: 10.3390/pathogens12020202] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/11/2023] [Accepted: 01/24/2023] [Indexed: 02/03/2023] Open
Abstract
Arthroplasty is a highly successful treatment to restore the function of a joint. The contamination of the implant via bacterial adhesion is the first step toward the development of device-associated infections. The emerging concern about antimicrobial resistance resulted in a growing interest to develop alternative therapeutic strategies. Thus, the increment in the incidence of bacterial periprosthetic infections, the complexity of treating infections caused by organisms growing in biofilms, together with the rise in antibiotic resistant bacteria, expose the need to design novel surfaces that provide innovative solutions to these rising problems. The aim of this work is to develop a coating on titanium (Ti) suitable for inhibiting bacterial adhesion and proliferation, and hence, biofilm formation on the surface. We have successfully prepared polyacrylamide hydrogels containing the conventional antibiotic ampicillin (AMP), silver nanoparticles (AgNPs), and both, AMP and AgNPs. The release of the antibacterial agents from the gelled to aqueous media resulted in an excellent antibacterial action of the loaded hydrogels against sessile S. aureus. Moreover, a synergic effect was achieved with the incorporation of both AMP and AgNPs in the hydrogel, which highlights the importance of combining antimicrobial agents having different targets. The polyacrylamide hydrogel coating on the Ti surface was successfully achieved, as it was demonstrated by FTIR, contact angle, and AFM measurements. The modified Ti surfaces having the polyacrylamide hydrogel film containing AgNPs and AMP retained the highest antibacterial effect against S. aureus as it was found for the unsupported hydrogels. The modified surfaces exhibit an excellent cytocompatibility, since healthy, flattened MC3T3-E1 cells spread on the surfaces were observed. In addition, similar macrophage RAW 264.7 adhesion was found on all the surfaces, which could be related to a low macrophage activation. Our results indicate that AMP and AgNP-loaded polyacrylamide hydrogel films on Ti are a good alternative for designing efficient antibacterial surfaces having an excellent cytocompatibility without inducing an exacerbated immune response. The approach emerges as a superior alternative to the widely used direct adsorption of therapeutic agents on surfaces, since the antimicrobial-loaded hydrogel coatings open the possibility of modulating the concentration of the antimicrobial agents to enhance bacterial killing, and then, reducing the risk of infections in implantable materials.
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Bordat A, Boissenot T, Ibrahim N, Ferrere M, Levêque M, Potiron L, Denis S, Garcia-Argote S, Carvalho O, Abadie J, Cailleau C, Pieters G, Tsapis N, Nicolas J. A Polymer Prodrug Strategy to Switch from Intravenous to Subcutaneous Cancer Therapy for Irritant/Vesicant Drugs. J Am Chem Soc 2022; 144:18844-18860. [PMID: 36193551 PMCID: PMC9585574 DOI: 10.1021/jacs.2c04944] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
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Chemotherapy is almost exclusively administered via the
intravenous
(IV) route, which has serious limitations (e.g., patient discomfort,
long hospital stays, need for trained staff, high cost, catheter failures,
infections). Therefore, the development of effective and less costly
chemotherapy that is more comfortable for the patient would revolutionize
cancer therapy. While subcutaneous (SC) administration has the potential
to meet these criteria, it is extremely restrictive as it cannot be
applied to most anticancer drugs, such as irritant or vesicant ones,
for local toxicity reasons. Herein, we report a facile, general, and
scalable approach for the SC administration of anticancer drugs through
the design of well-defined hydrophilic polymer prodrugs. This was
applied to the anticancer drug paclitaxel (Ptx) as a worst-case scenario
due to its high hydrophobicity and vesicant properties (two factors
promoting necrosis at the injection site). After a preliminary screening
of well-established polymers used in nanomedicine, polyacrylamide
(PAAm) was chosen as a hydrophilic polymer owing to its greater physicochemical,
pharmacokinetic, and tumor accumulation properties. A small library
of Ptx-based polymer prodrugs was designed by adjusting the nature
of the linker (ester, diglycolate, and carbonate) and then evaluated
in terms of rheological/viscosity properties in aqueous solutions,
drug release kinetics in PBS and in murine plasma, cytotoxicity on
two different cancer cell lines, acute local and systemic toxicity,
pharmacokinetics and biodistribution, and finally their anticancer
efficacy. We demonstrated that Ptx-PAAm polymer prodrugs could be
safely injected subcutaneously without inducing local toxicity while
outperforming Taxol, the commercial formulation of Ptx, thus opening
the door to the safe transposition from IV to SC chemotherapy.
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Affiliation(s)
- Alexandre Bordat
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Tanguy Boissenot
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Nada Ibrahim
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Marianne Ferrere
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Manon Levêque
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Léa Potiron
- Imescia, Université Paris-Saclay, 91400 Saclay, France
| | - Stéphanie Denis
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Sébastien Garcia-Argote
- Département Médicaments et Technologies pour la Santé (DMTS), SCBM, Université Paris-Saclay, CEA, INRAE, Gif-sur-Yvette F-91191, France
| | - Olivia Carvalho
- Département Médicaments et Technologies pour la Santé (DMTS), SCBM, Université Paris-Saclay, CEA, INRAE, Gif-sur-Yvette F-91191, France
| | - Jérôme Abadie
- Laboniris, Départment de Biology, Pathologie et Sciences de l'Aliment, Oniris, F-44307 Nantes, France
| | - Catherine Cailleau
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Grégory Pieters
- Département Médicaments et Technologies pour la Santé (DMTS), SCBM, Université Paris-Saclay, CEA, INRAE, Gif-sur-Yvette F-91191, France
| | - Nicolas Tsapis
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Julien Nicolas
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 91400 Orsay, France
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Zhao P, Zhao W, Zhang K, Lin H, Zhang X. Polymeric injectable fillers for cosmetology: Current status, future trends, and regulatory perspectives. J Appl Polym Sci 2020. [DOI: 10.1002/app.48515] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Peng Zhao
- Center for Medical Device EvaluationNational Medical Products Administration Beijing 100081 People's Republic of China
| | - Wanlu Zhao
- National Engineering Research Center for BiomaterialsSichuan University Chengdu Sichuan 610065 People's Republic of China
| | - Kai Zhang
- National Engineering Research Center for BiomaterialsSichuan University Chengdu Sichuan 610065 People's Republic of China
- Institute of Regulatory Science for Medical DeviceSichuan University Chengdu Sichuan 610065 People's Republic of China
| | - Hai Lin
- National Engineering Research Center for BiomaterialsSichuan University Chengdu Sichuan 610065 People's Republic of China
| | - Xingdong Zhang
- National Engineering Research Center for BiomaterialsSichuan University Chengdu Sichuan 610065 People's Republic of China
- Institute of Regulatory Science for Medical DeviceSichuan University Chengdu Sichuan 610065 People's Republic of China
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Wang YL, Li D. Creating Complex Polyacrylamide Hydrogel Structures Using 3D Printing with Applications to Mechanobiology. Macromol Biosci 2020; 20:e2000082. [PMID: 32558163 PMCID: PMC7482135 DOI: 10.1002/mabi.202000082] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 05/06/2020] [Indexed: 12/22/2022]
Abstract
Due to its favorable physical and chemical properties, including chemical inertness, low fouling by biological molecules, high porosity and permeability, optical transparency, and adjustable elasticity, polyacrylamide has found a wide range of biomedical and non-biomedical applications. To further increase its versatility, this communication describes a simple method, using readily available reagents and equipment, for 3D printing polyacrylamide hydrogels at a resolution of 100-150 μm to create complex structures. As a demonstration of the application, the method is used for creating a lab-on-a-chip cell culture surface with micropatterned stiffness, which then leads to the discovery of stiffness-guided collective cell segregation distinct from durotaxis. The present technology is expected to unleash new applications such as the construction of biocompatible elastic medical devices and artificial organs.
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Affiliation(s)
- Yu-Li Wang
- Department of Biomedical Engineering, Scott Hall 4N209, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA, 15213, USA
| | - David Li
- Department of Biomedical Engineering, Scott Hall 4N209, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA, 15213, USA
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Yang DY, Ko K, Lee SH, Moon DG, Kim JW, Lee WK. Efficacy and safety of newly developed cross-linked dextran gel injection for glans penis augmentation with a novel technique. Asian J Androl 2019; 20:80-84. [PMID: 28303807 PMCID: PMC5753559 DOI: 10.4103/aja.aja_1_17] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
There is no safe and effective standard method for glans penis augmentation. Furthermore, there has been scant research on glans penis augmentation due to a poor understanding of glans anatomy, technical difficulty, and a lack of suitable substances for augmentation. Cross-linked dextran gel is a newly developed filler for soft-tissue augmentation. We evaluated the efficacy and safety of using a novel technique to inject cross-linked dextran gel for glans penis augmentation during a 24-week follow-up study. This prospective, single-arm, multicenter study enrolled twenty healthy adult men who underwent glans penis augmentation between June and August 2013. Cross-linked dextran gel was injected into the glans penis using a simple and easy technique. The sizes of the glans penis and individual satisfaction were assessed. Any adverse event was also reported. A total of 18 individuals were analyzed; two of them were lost to follow-up. The mean procedure time and injected volume were about 30 min and 6.6 ± 0.9 ml, respectively. The mean surface areas of the glans at baseline and 24 weeks were 20.0 ± 3.5 cm2 and 33.6 ± 5.4 cm2, respectively, representing a mean increase of 68.7% ± 14.0% (P < 0.001). Sixteen individuals (88.9%) were satisfied with the outcomes, and none were dissatisfied. There were no serious adverse events during the study. Cross-linked dextran gel injection for glans penis augmentation was easy and showed a significant augmentative effect on the glans penis, good durability, and was well tolerated without serious adverse events. Therefore, cross-linked dextran gel injection may be an effective, new technique for glans penis augmentation.
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Affiliation(s)
- Dae Yul Yang
- Department of Urology, College of Medicine, Hallym University, Chuncheon, Korea
| | - Kyungtae Ko
- Department of Urology, College of Medicine, Hallym University, Chuncheon, Korea
| | - Seong Ho Lee
- Department of Urology, College of Medicine, Hallym University, Chuncheon, Korea
| | - Du Geon Moon
- Department of Urology, College of Medicine, Korea University, Seoul, Korea
| | - Jong Wook Kim
- Department of Urology, College of Medicine, Korea University, Seoul, Korea
| | - Won Ki Lee
- Department of Urology, College of Medicine, Hallym University, Chuncheon, Korea
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Rho BI, Yoon SM, Park ES, Wee SY. The Characteristics and Safety of Previous Fillers in Secondary Rhinoplasty. ARCHIVES OF AESTHETIC PLASTIC SURGERY 2018. [DOI: 10.14730/aaps.2018.24.2.49] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Nanofat Increases Dermis Thickness and Neovascularization in Photoaged Nude Mouse Skin. Aesthetic Plast Surg 2018; 42:343-351. [PMID: 29380024 DOI: 10.1007/s00266-018-1091-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Accepted: 01/21/2018] [Indexed: 12/15/2022]
Abstract
OBJECT To investigate the effects of nanofat injection into photoaged nude mouse skin on dermis thickness, neovascularization, and cell proliferation. METHODS Adipose-derived stem cells (ADSCs) and nanofat were prepared from human liposuction aspirates. The photoaged skin model was created using ultraviolet B (UVB) radiation onto BALB/c nude mice. A total of 24 mice were used in this study; 6 mice without treatment (natural aging) served as controls, while 18 mice were irradiated under the UVB lamp and treated with PBS (200 μl per injection area), ADSCs (1 × 106/200 μl ADSCs per injection area), or nanofat (200 μl per injection area) on the dorsal skin. Four weeks after injection, skin specimens were collected. The skin texture of each group was evaluated by general observation. Histological analyses were performed to analyze skin structure, dermis thickness, collagen fiber arrangement, capillary density, and cell proliferation. RESULTS Four weeks after injection, no obvious differences were observed between the PBS group, ADSCs group, and nanofat group by skin gross observation. From the histological analyses, the ADSCs group and the nanofat group showed obviously thicker dermis than the PBS group (P < 0.05). More capillaries were observed in skin using anti-CD31 staining in the ADSCs and Nanofat groups than was observed in the PBS group (P < 0.05). No significant differences in the average dermis proliferation index were observed between groups by anti-Ki-67 staining. However, an increased epidermal proliferation index was observed in the ADSCs and Nanofat groups, compared to that in the PBS group (P < 0.05). CONCLUSIONS Nanofat increased dermis thickness and neovascularization in photoaged skin. NO LEVEL ASSIGNED This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Abstract
Acne is a common inflammatory disease. Scarring is an unwanted end point of acne. Both atrophic and hypertrophic scar types occur. Soft-tissue augmentation aims to improve atrophic scars. In this review, we will focus on the use of dermal fillers for acne scar improvement. Therefore, various filler types are characterized, and available data on their use in acne scar improvement are analyzed.
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Affiliation(s)
- Uwe Wollina
- Department of Dermatology and Allergology, Academic Teaching Hospital, Dresden-Friedrichstadt, Dresden, Germany
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