1
|
Arai K, Yoshida S, Furuichi E, Iwanaga S, Mir TA, Yoshida T. Transplanted artificial amnion membrane enhanced wound healing in third-degree burn injury diabetic mouse model. Regen Ther 2024; 27:170-180. [PMID: 38571890 PMCID: PMC10987674 DOI: 10.1016/j.reth.2024.03.016] [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: 12/07/2023] [Revised: 02/29/2024] [Accepted: 03/15/2024] [Indexed: 04/05/2024] Open
Abstract
Introduction Wound healing is severely compromised in patients with diabetes owing to factors such poor blood circulation, delayed immune response, elevated blood sugar levels, and neuropathy. Although the development of new wound healing products and prevention of serious complications such as infections in wounds have received substantial interest, wound healing remains a challenge in regenerative medicine. Burn wounds, especially third-degree burns, are difficult to treat because they are associated with immune and inflammatory reactions and distributive shock. Wound care and treatment that protects the burn site from infection and allows wound healing can be achieved with bioengineered wound dressings. However, few studies have reported effective dressings for third-degree burn wounds, making it important to develop new dressing materials. Methods In this study, we developed an artificial amniotic membrane (AM) using epithelial and mesenchymal cells derived from human amnion as a novel dressing material. The artificial AM was applied to the wound of a diabetic third-degree burn model and its wound healing ability was evaluated. Results This artificial amnion produced multiple growth factors associated with angiogenesis, fibroblast proliferation, and anti-inflammation. In addition, angiogenesis and granulation tissue formation were promoted in the artificial AM-treated mouse group compared with the control group. Furthermore, the inflammatory phase was prolonged in the control group. Conclusions Our preliminary results indicate that the artificial AM might be useful as a new dressing for refractory ulcers and third-degree burns. This artificial AM-based material represents great potential for downstream clinical research and treatment of diabetes patients with third-degree burns.
Collapse
Affiliation(s)
- Kenichi Arai
- Department of Clinical Biomaterial Applied Science, Faculty of Medicine, University of Toyama, Toyama, Japan
- Department of Biotechnology, Faculty of Bioresource Sciences, Akita Prefectural University, Akita, Japan
| | - Satoshi Yoshida
- Department of Medical Oncology, Toyama University Hospital, Toyama, Japan
| | - Etsuko Furuichi
- Department of Clinical Biomaterial Applied Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Shintaroh Iwanaga
- Division of Biomedical System Engineering, Graduate School of Science and Engineering, University of Toyama, Toyama, Japan
| | - Tanveer Ahmad Mir
- Tissue/Organ Bioengineering and BioMEMS Lab, Organ Transplant Centre of Excellence (TR&I Dpt), King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia
| | - Toshiko Yoshida
- Department of Clinical Biomaterial Applied Science, Faculty of Medicine, University of Toyama, Toyama, Japan
| |
Collapse
|
2
|
Abo-Salem HM, Ali EA, Abdelmegeed H, El Souda SSM, Abdel-Aziz MS, Ahmed KM, Fawzy NM. Chitosan nanoparticles of new chromone-based sulfonamide derivatives as effective anti-microbial matrix for wound healing acceleration. Int J Biol Macromol 2024; 272:132631. [PMID: 38810852 DOI: 10.1016/j.ijbiomac.2024.132631] [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: 01/30/2024] [Revised: 05/02/2024] [Accepted: 05/22/2024] [Indexed: 05/31/2024]
Abstract
A new series of chromone and furochromone-based sulfonamide Schiff's base derivatives 3-12 were synthesized and evaluated for their antimicrobial activity against S. aureus, E. coli, C. albicans, and A. niger using agar diffusion method. Compound 3a demonstrated potent antimicrobial activities with MIC values of 9.76 and 19.53 μg/mL against S. aureus, E. coli and C. albicans, which is 2-fold and 4-fold more potent than neomycin (MIC = 19.53, 39.06 μg/mL respectively). To improve the effectiveness of 3a, it was encapsulated into chitosan nanoparticles (CS-3aNPs). The CS-3aNPs size was 32.01 nm, as observed by transmission electron microscope (TEM) images and the zeta potential value was 14.1 ± 3.07 mV. Encapsulation efficiency (EE) and loading capacity (LC) were 91.5 % and 1.6 %, respectively as indicated by spectral analysis. The CS-3aNPs extremely inhibited bacterial growth utilizing the colony-forming units (CFU). The ability of CS-3aNPs to protect skin wounds was evaluated in vivo. CS-3aNPs showed complete wound re-epithelialization, hyperplasia of the epidermis, well-organized granulation tissue formation, and reduced signs of wound infection, as seen through histological assessment which showed minimal inflammatory cells in comparison with untreated wound. Overall, these findings suggest that CS-3aNPs has a positive impact on protecting skin wounds from infection due to their antimicrobial activity.
Collapse
Affiliation(s)
- Heba M Abo-Salem
- Chemistry of Natural Compounds Department, National Research Centre, 12622 Dokki, Giza, Egypt.
| | - Eman AboBakr Ali
- Polymers and Pigments Department, National Research Centre, 12622 Dokki, Giza, Egypt
| | - Heba Abdelmegeed
- Chemistry of Natural Compounds Department, National Research Centre, 12622 Dokki, Giza, Egypt
| | - Sahar S M El Souda
- Chemistry of Natural Compounds Department, National Research Centre, 12622 Dokki, Giza, Egypt
| | - Mohamed S Abdel-Aziz
- Microbial Chemistry Department, Biotechnology Research Institute, National Research Centre, 12622 Dokki, Giza, Egypt
| | - Khadiga M Ahmed
- Chemistry of Natural Compounds Department, National Research Centre, 12622 Dokki, Giza, Egypt
| | - Nagwa M Fawzy
- Chemistry of Natural and Microbial Products Department, National Research Center, 12622 Dokki, Giza, Egypt.
| |
Collapse
|
3
|
Taha M, Elazab ST, Qutub A, Abdelbagi O, Baokbah TAS, Ahmed GS, Zaghloul RA, Albarakati AJA, Qusty NF, Babateen O, Al-Kushi AG. Novel Insights about Synergistic Effect of Zamzam Water with SGL2 Inhibitors on Wound Healing in STZ-Induced Diabetic Rats: The Role of anti-Inflammatory and Proangiogenic Effects. J INVEST SURG 2023; 36:2266736. [PMID: 37813392 DOI: 10.1080/08941939.2023.2266736] [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: 06/27/2023] [Accepted: 09/28/2023] [Indexed: 10/11/2023]
Abstract
Background: Hyperglycemia usually impairs wound healing by dysregulating the inflammatory response and angiogenesis. This study aimed to examine the synergistic effect of dapagliflozin and Zamzam water (ZW) on the healing of diabetic wounds and to explore their anti-inflammatory and proangiogenic effects.Materials and methods: A full-thickness excisional wound was made on the backs of all groups after two weeks of diabetes induction. Forty rats were divided into five groups, with eight rats per group; Group 1: Control non-diabetic rats; Group II: Untreated diabetic rats; Group III: Diabetic rats drinking ZW; Group IV: Diabetic rats receiving an oral dose of 1 mg/kg dapagliflozin; and Group V: Received both dapagliflozin and ZW. The healing of diabetic wounds was assessed by measuring wound closure, oxidative stress markers, immunohistochemical staining of NF-βB, VEGF, CD34, CD45, Ki-67, and eNOS, gene expression of MMP-9, TGF-β1, EGF-b1, FGF, and Col1A1, protein levels of TNFα, IL-1β, IL6, Ang II, and HIF-1α by ELISA assay, and histological examination with H & E and Masson's trichrome. Combined treatment with dapagliflozin and ZW significantly (p < 0.05) enhanced the wound closure and antioxidant enzyme level, with apparent histological improvement, and shortened the inflammatory stage of the diabetic wound by decreasing the level of inflammatory markers NF-κB, TNF-α, IL-1β, IL6, and CD45. Therefore, it improved angiogenesis markers VEGF, CD34, eNOS, EGF-β1, FGF, Ang II, and HIF-1α, increasing Ki-67 cellular proliferation. Moreover, it enhanced the remodeling stage by increasing MMP-2, TGF-β1, and Col1A1 levels compared to diabetic rats.
Collapse
Affiliation(s)
- Medhat Taha
- Department of Anatomy and Embryology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
- Department of Anatomy, Al-Qunfudah Medical College, Umm Al-Qura University, Al-Qunfudhah, Saudi Arabia
| | - Sara T Elazab
- Department of Pharmacology, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
| | - Ammar Qutub
- Department of Surgery, Faculty of Medicine, King abdulaziz University, Rabigh, Saudi Arabia
| | - Omer Abdelbagi
- Department of Pathology, Qunfudah Faculty of Medicine, Umm-Al-Qura University, Makkah, Kingdom of Saudi Arabia
| | - Tourki A S Baokbah
- Department of Medical Emergency Services, College of Health Sciences-AlQunfudah, Umm Al-Qura University, Al-Qunfudhah, Saudi Arabia
| | - Gomaa S Ahmed
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Randa A Zaghloul
- Department of Biochemistry, Faculty of Pharmacy, University of Mansoura, Mansoura, Egypt
| | | | - Naeem F Qusty
- Medical Laboratories Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Omar Babateen
- Department of physiology, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Abdullah G Al-Kushi
- Department of Human Anatomy, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| |
Collapse
|
4
|
Luo P, Shu L, Huang Z, Huang Y, Wu C, Pan X, Hu P. Utilization of Lyotropic Liquid Crystalline Gels for Chronic Wound Management. Gels 2023; 9:738. [PMID: 37754419 PMCID: PMC10530416 DOI: 10.3390/gels9090738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 09/07/2023] [Accepted: 09/09/2023] [Indexed: 09/28/2023] Open
Abstract
Management of chronic wounds is becoming a serious health problem worldwide. To treat chronic wounds, a suitable healing environment and sustained delivery of growth factors must be guaranteed. Different therapies have been applied for the treatment of chronic wounds such as debridement and photodynamic therapy. Among them, growth factors are widely used therapeutic drugs. However, at present, growth factor delivery systems cannot meet the demand of clinical practice; therefore new methods should be developed to meet the emerging need. For this reason, researchers have tried to modify hydrogels through some methods such as chemical synthesis and molecule modifications to enhance their properties. However, there are still a large number of limitations in practical use like byproduct problems, difficulty to industrialize, and instability of growth factor. Moreover, applications of new materials like lyotropic liquid crystalline (LLC) on chronic wounds have emerged as a new trend. The structure of LLC is endowed with many excellent properties including low cost, ordered structure, and excellent loading efficiency. LLC can provide a moist local environment for the wound, and its lattice structure can embed the growth factors in the water channel. Growth factor is released from the high-concentration carrier to the low-concentration release medium, which can be precisely regulated. Therefore, it can provide sustained and stable delivery of growth factors as well as a suitable healing environment for wounds, which is a promising candidate for chronic wound healing and has a broad prospective application. In conclusion, more reliable and applicable drug delivery systems should be designed and tested to improve the therapy and management of chronic wounds.
Collapse
Affiliation(s)
- Peili Luo
- College of Pharmacy, Jinan University, Guangzhou 511443, China; (P.L.); (L.S.); (C.W.); (P.H.)
| | - Lei Shu
- College of Pharmacy, Jinan University, Guangzhou 511443, China; (P.L.); (L.S.); (C.W.); (P.H.)
| | - Zhengwei Huang
- College of Pharmacy, Jinan University, Guangzhou 511443, China; (P.L.); (L.S.); (C.W.); (P.H.)
| | - Ying Huang
- College of Pharmacy, Jinan University, Guangzhou 511443, China; (P.L.); (L.S.); (C.W.); (P.H.)
| | - Chuanbin Wu
- College of Pharmacy, Jinan University, Guangzhou 511443, China; (P.L.); (L.S.); (C.W.); (P.H.)
| | - Xin Pan
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China;
| | - Ping Hu
- College of Pharmacy, Jinan University, Guangzhou 511443, China; (P.L.); (L.S.); (C.W.); (P.H.)
| |
Collapse
|
5
|
Uckun FM, Orhan C, Tuzcu M, Durmus AS, Ozercan IH, Volk M, Sahin K. RJX Improves Wound Healing in Diabetic Rats. Front Endocrinol (Lausanne) 2022; 13:874291. [PMID: 35721744 PMCID: PMC9201994 DOI: 10.3389/fendo.2022.874291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 04/21/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND We recently reported the clinical safety profile of RJX, a well-defined intravenous GMP-grade pharmaceutical formulation of anti-oxidant and anti-inflammatory vitamins as active ingredients, in a Phase 1 study in healthy volunteers (ClinicalTrials.gov Identifier: NCT03680105) (Uckun et al., Front. Pharmacol. 11, 594321. 10.3389/fphar.2020.594321). The primary objective of the present study was to examine the effects of GMP-grade RJX on wound and burn injury healing in diabetic rats. METHODS In the present study, a rat model of T2DM was used that employs HFD in combination with a single injection of STZ intraperitoneally (i.p) at a moderate dose level (45 mg/kg). Anesthetized diabetic rats underwent full-thickness skin excision on the back or were subjected to burn injury via a heated brass probe and then started on treatments with normal saline (NS = vehicle) or RJX administered via intraperitoneal injections for three weeks. FINDINGS Notably, diabetic rats treated with the 1.25 mL/kg or 2.5 mL/kg RJX (DM+RJX groups) rapidly healed their wounds as fast as non-diabetic control rats. Inflammatory cell infiltration in the dermis along with fibrin and cell debris on the epithelial layer persisted for up to 14 days in the DM+NS group but not in RJX-treated groups. The histopathological score of wound healing on days 7 and 14 was better in diabetic rats treated with RJX than diabetic rats treated with NS and comparable to the scores for non-diabetic healthy rats consistent with an accelerated healing process. The residual wound area of RJX-treated rats was significantly smaller than that of NS-treated diabetic rats at each evaluation time point (P<0.001). The accelerating effect of RJX on diabetic wound healing was dose-dependent. We obtained similar results in the burn injury model. Our results demonstrate that RJX - at a dose level >10-fold lower than its clinical maximum tolerated dose (MTD) - accelerates the healing of excision wounds as well burn injury in diabetic rats.
Collapse
Affiliation(s)
- Fatih M. Uckun
- Drug Discovery Program, Reven Pharmaceuticals, Westminster, CO, United States
- Department of Developmental Therapeutics, Immunology, and Integrative Medicine, Ares Pharmaceuticals, St. Paul, MN, United States
- *Correspondence: Fatih M. Uckun, ; orcid.org/0000-0001-9334-183X
| | - Cemal Orhan
- Department of Animal Nutrition, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
| | - Mehmet Tuzcu
- Department of Biology, Faculty of Science, Firat University, Elazig, Turkey
| | - Ali Said Durmus
- Department of Surgery Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
| | - Ibrahim H. Ozercan
- Department of Pathology Faculty of Medicine, Firat University, Elazig, Turkey
| | - Michael Volk
- Drug Discovery Program, Reven Pharmaceuticals, Westminster, CO, United States
| | - Kazim Sahin
- Department of Animal Nutrition, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
| |
Collapse
|
6
|
Kim B, Ban E, Kim A. Gelatin-Alginate Coacervates Optimized by DOE to Improve Delivery of bFGF for Wound Healing. Pharmaceutics 2021; 13:2112. [PMID: 34959393 PMCID: PMC8705889 DOI: 10.3390/pharmaceutics13122112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 11/03/2021] [Accepted: 12/02/2021] [Indexed: 01/10/2023] Open
Abstract
Metabolic disorders in diabetic patients are associated with altered protein and lipid metabolism and defects in granulation tissue formation, resulting in non-healing wounds such as diabetic foot ulcers (DFU). Growth factors have essential roles in tissue re-epithelization and angiogenesis during wound healing. In this study, a complex coacervate was evaluated as an enhanced delivery system for fibroblast growth factor (bFGF) to control its release rate and protect it from proteases. Coacervates composed of gelatin Type A (GA) and sodium alginate (SA) were optimized by the Design of Experiments (DOE), with the polymer ratio and the medium's pH as the independent variables, and turbidity, particle size, polydispersity index, and encapsulation efficiency (EE, %) as the responses. The optimized coacervate protected bFGF from trypsin digestion and showed controlled release compared with bFGF in solution or a physical mixture of GA and SA. It enhanced the viability, migration, and procollagen I C-terminal propeptide synthesis of human dermal fibroblasts in hyperglycemic conditions. In summary, the DOE approach was successfully applied to optimize bFGF GA-SA coacervates as a potential novel therapeutic modality to treat DFU.
Collapse
Affiliation(s)
| | | | - Aeri Kim
- Department of Pharmacy, College of Pharmacy, CHA University, Seongnam-si 463-400, Korea; (B.K.); (E.B.)
| |
Collapse
|
7
|
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.
Collapse
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
| |
Collapse
|
8
|
Ban E, Jeong S, Park M, Kwon H, Park J, Song EJ, Kim A. Accelerated wound healing in diabetic mice by miRNA-497 and its anti-inflammatory activity. Biomed Pharmacother 2020; 121:109613. [DOI: 10.1016/j.biopha.2019.109613] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 10/25/2019] [Accepted: 10/26/2019] [Indexed: 12/15/2022] Open
|
9
|
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.
Collapse
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.
| |
Collapse
|
10
|
Lau HC, Jeong S, Kim A. Gelatin-alginate coacervates for circumventing proteolysis and probing intermolecular interactions by SPR. Int J Biol Macromol 2018; 117:427-434. [DOI: 10.1016/j.ijbiomac.2018.05.093] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Revised: 04/15/2018] [Accepted: 05/15/2018] [Indexed: 01/25/2023]
|
11
|
Gonchar IV, Lipunov AR, Afanasov IM, Larina V, Faller AP, Kibardin AV. Platelet rich plasma and growth factors cocktails for diabetic foot ulcers treatment: State of art developments and future prospects. Diabetes Metab Syndr 2018; 12:189-194. [PMID: 29050916 DOI: 10.1016/j.dsx.2017.09.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 09/20/2017] [Indexed: 01/13/2023]
Abstract
Current advances in diabetic foot ulcers (DFU) treatment are discussed. Normal and pathological wound healing process are observed and the role of growth factors (GFs) is elucidated. Current techniques involving GFs and platelet rich plasma (PRP) are compared. Up-to-date research suggests that treatment with single growth factor (GF) could be insufficient and not encompassing all pathological changes in DFU bed. Efficiency of PRP is rather controversial and lacks evidence. Thus the use of cocktail of particular GFs is suggested. Pro et contra of each approach are discussed.
Collapse
Affiliation(s)
- I V Gonchar
- Center for Theoretical Problems of Physicochemical Pharmacology, RAS, Moscow, Russia
| | - A R Lipunov
- Moscow State University, Chemistry Department, Moscow, Russia.
| | | | - V Larina
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - A P Faller
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - A V Kibardin
- Institute of Gene Biology of the Russian Academy of Sciences, Moscow, Russia; Dmitry Rogachev National Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia.
| |
Collapse
|
12
|
Revisiting in vitro release test for topical gel formulations: The effect of osmotic pressure explored for better bio-relevance. Eur J Pharm Sci 2018; 112:102-111. [DOI: 10.1016/j.ejps.2017.11.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 11/08/2017] [Accepted: 11/09/2017] [Indexed: 11/19/2022]
|