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Wattanakrai P, Sindhusen S, Ploydaeng M. Effectiveness of an epidermal growth factor‐containing cream on postinflammatory hyperpigmentation after 1064‐nm Q‐switched neodymium‐doped yttrium aluminum garnet laser treatment of acquired bilateral nevus of Ota‐like macules (Hori's nevus) in Asians: A split‐face, double‐blinded, randomized controlled study. J Cosmet Dermatol 2022; 21:2031-2037. [DOI: 10.1111/jocd.14765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 12/11/2021] [Accepted: 01/03/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Penpun Wattanakrai
- Ramathibodi Laser Center Division of Dermatology Department of Internal Medicine Faculty of Medicine Ramathibodi HospitalMahidol University Bangkok Thailand
| | - Sasipaka Sindhusen
- Ramathibodi Laser Center Division of Dermatology Department of Internal Medicine Faculty of Medicine Ramathibodi HospitalMahidol University Bangkok Thailand
| | - Monthanat Ploydaeng
- Ramathibodi Laser Center Division of Dermatology Department of Internal Medicine Faculty of Medicine Ramathibodi HospitalMahidol University Bangkok Thailand
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Jeong S, Kim B, Park M, Ban E, Lee SH, Kim A. Improved Diabetic Wound Healing by EGF Encapsulation in Gelatin-Alginate Coacervates. Pharmaceutics 2020; 12:pharmaceutics12040334. [PMID: 32276508 PMCID: PMC7238057 DOI: 10.3390/pharmaceutics12040334] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/30/2020] [Accepted: 04/01/2020] [Indexed: 12/25/2022] Open
Abstract
Topical imageplication of epidermal growth fctor (EGF) has been used to accelerate diabetic foot ulcers but with limited efficacy. In this study, we selected a complex coacervate (EGF-Coa) composed of the low molecular weight gelatin type A and sodium alginate as a novel delivery system for EGF, based on encapsulation efficiency and protection of EGF from protease. EGF-Coa enhanced in vitro migration of keratinocytes and accelerated wound healing in streptozotocin-induced diabetic mice with increased granulation and re-epithelialization. While diabetic wound sites without treatment showed downward growth of hyperproliferative epidermis along the wound edges with poor matrix formation, EGF-Coa treatment recovered horizontal migration of epidermis over the newly deposited dermal matrix. EGF-Coa treatment also resulted in reduced levels of proinflammatory cytokines IL-1, IL-6, and THF-α. Freeze-dried coacervates packaged in aluminum pouches were stable for up to 4 months at 4 and 25 °C in terms of appearance, purity by RP-HPLC, and in vitro release profiles. There were significant physical and chemical changes in relative humidity above 33% or at 37 °C, suggesting the requirement for moisture-proof packaging and cold chain storage for long term stability. We propose low molecular weight gelatin type A and sodium alginate (LWGA-SA) coacervates as a novel EGF delivery system with enhanced efficacy for chronic wounds.
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Affiliation(s)
- Seonghee Jeong
- College of Pharmacy, CHA University, Seongnam-si 463-400, Gyeonggi-do, Korea; (S.J.); (B.K.); (M.P.); (E.B.)
| | - ByungWook Kim
- College of Pharmacy, CHA University, Seongnam-si 463-400, Gyeonggi-do, Korea; (S.J.); (B.K.); (M.P.); (E.B.)
| | - Minwoo Park
- College of Pharmacy, CHA University, Seongnam-si 463-400, Gyeonggi-do, Korea; (S.J.); (B.K.); (M.P.); (E.B.)
| | - Eunmi Ban
- College of Pharmacy, CHA University, Seongnam-si 463-400, Gyeonggi-do, Korea; (S.J.); (B.K.); (M.P.); (E.B.)
| | - Soo-Hyeon Lee
- Immunotherapy Development Team, R&D Division, CHA Biolab, Seongnam 463-400, Korea;
| | - Aeri Kim
- College of Pharmacy, CHA University, Seongnam-si 463-400, Gyeonggi-do, Korea; (S.J.); (B.K.); (M.P.); (E.B.)
- Correspondence: ; Tel.: +82-3-1881-7166
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Jeong S, Kim B, Lau HC, Kim A. Gelatin-Alginate Complexes for EGF Encapsulation: Effects of H-Bonding and Electrostatic Interactions. Pharmaceutics 2019; 11:pharmaceutics11100530. [PMID: 31614977 PMCID: PMC6835588 DOI: 10.3390/pharmaceutics11100530] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 09/24/2019] [Accepted: 10/11/2019] [Indexed: 01/24/2023] Open
Abstract
Gelatin Type A (GA) and sodium alginate (SA) complexes were explored to encapsulate epidermal growth factor (EGF), and thereby to circumvent its proteolytic degradation upon topical application to chronic wounds. Phase diagrams were constructed based on turbidity as a function of GA to SA ratio and pH. Various GA-SA mixtures were compared for polydispersity index, zeta potential, Z-average, and ATR-FTIR spectra. Trypsin digestion and human dermal fibroblast scratch wound assay were done to evaluate the effects of EGF encapsulation. The onset pH values for coacervation and precipitation were closer together in high molecular weight GA (HWGA)-SA reaction mixtures than in low molecular weight GA (LWGA)-SA, which was attributed to strong H-bonding interactions between HWGA and SA probed by ATR-FTIR. EGF incorporation in both HWGA-SA precipitates and LWGA-SA coacervates below the isoelectric point of EGF, but not above it, suggests the contribution of electrostatic interactions between EGF and SA. EGF encapsulated in LWGA-SA coacervates was effectively protected from trypsin digestion and showed better in vitro scratch wound activity compared to free EGF. LWGA-SA coacervates are suggested as a novel delivery system for topical application of EGF to chronic wounds.
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Affiliation(s)
- Seonghee Jeong
- College of Pharmacy, CHA University, Seongnam-si, Gyeonggi-do 463-400, Korea.
| | - ByungWook Kim
- College of Pharmacy, CHA University, Seongnam-si, Gyeonggi-do 463-400, Korea
| | - Hui-Chong Lau
- College of Pharmacy, CHA University, Seongnam-si, Gyeonggi-do 463-400, Korea.
| | - Aeri Kim
- College of Pharmacy, CHA University, Seongnam-si, Gyeonggi-do 463-400, Korea.
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Preparation of azidophenyl-low molecular chitosan derivative micro particles for enhance drug delivery. Int J Biol Macromol 2019; 133:875-880. [DOI: 10.1016/j.ijbiomac.2019.04.168] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 03/20/2019] [Accepted: 04/24/2019] [Indexed: 01/12/2023]
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Alarcón-Payán DA, Koyani RD, Vazquez-Duhalt R. Chitosan-based biocatalytic nanoparticles for pollutant removal from wastewater. Enzyme Microb Technol 2017; 100:71-78. [DOI: 10.1016/j.enzmictec.2017.02.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 02/16/2017] [Accepted: 02/16/2017] [Indexed: 12/16/2022]
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Hajimiri M, Shahverdi S, Esfandiari MA, Larijani B, Atyabi F, Rajabiani A, Dehpour AR, Amini M, Dinarvand R. Preparation of hydrogel embedded polymer-growth factor conjugated nanoparticles as a diabetic wound dressing. Drug Dev Ind Pharm 2015; 42:707-19. [DOI: 10.3109/03639045.2015.1075030] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Mirhamed Hajimiri
- Nanomedicine and Biomaterial Laboratory, Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran,
- Nano Alvand Co., Avicenna Tech Park, Tehran University of Medical Sciences, Tehran, Iran,
| | - Sheida Shahverdi
- Nanomedicine and Biomaterial Laboratory, Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran,
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran,
| | - Mohammad Amin Esfandiari
- Nanomedicine and Biomaterial Laboratory, Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran,
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center (EMRC), Tehran University Medical Sciences, Tehran, Iran,
| | - Fatemeh Atyabi
- Nanomedicine and Biomaterial Laboratory, Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran,
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran,
| | - Afsaneh Rajabiani
- Department of Pathology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran,
| | - Ahmad Reza Dehpour
- Department of Pharmacology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran, and
| | - Mohsen Amini
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Rassoul Dinarvand
- Nanomedicine and Biomaterial Laboratory, Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran,
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran,
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Hajimiri M, Shahverdi S, Kamalinia G, Dinarvand R. Growth factor conjugation: strategies and applications. J Biomed Mater Res A 2014; 103:819-38. [PMID: 24733811 DOI: 10.1002/jbm.a.35193] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 03/17/2014] [Accepted: 04/03/2014] [Indexed: 12/17/2022]
Abstract
Growth factors, first known for their essential role in the initiation of mitosis, are required for a variety of cellular processes and their localized delivery is considered as a rational approach in their therapeutic application to assure a safe and effective treatment while avoiding unwanted adverse effects. Noncovalent immobilization of growth factors as well as their covalent conjugation is amongst the most common strategies for localized delivery of growth factors. Today, immobilized and covalently conjugated growth factors are considered as a promising drug design and are widely used for protein reformulation and material design to cover the unwanted characteristics of growth factors as well as improving their functions. Selection of a suitable conjugation technique depends on the substrate chemistry and the availability of functional reactive groups in the structure of growth factor, the position of reactive groups in growth factor molecules and its relation with the receptor binding area, and the intention of creating either patterned or unpatterned conjugation. Various approaches for growth factor reformulation have been reported. This review provides an overview on chemical conjugation of growth factors and covers the relevant studies accomplished for bioconjugation of growth factors and their related application.
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Affiliation(s)
- Mirhamed Hajimiri
- Nanomedicine and Biomaterial Lab, Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, 1417614411, Iran; Nano Alvand Co., Avicenna Tech Park, Tehran University of Medical Sciences, Tehran, 1439955991, Iran
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