Yasodha Ponnusamy1, Nelson Jeng-Yeou Chear1, Surash Ramanathan1, Choon-Sheen Lai2. 1. Centre for Drug Research, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia. 2. Centre for Drug Research, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia. Electronic address: cs_lai@usm.my.
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE: Dicranopteris linearis is a fern used traditionally for the treatment of skin afflictions such as external wounds, boils and ulcers. However, there are no scientific studies to date to demonstrate its ability to induce wound recovery. The objective of the present study was to explore the wound healing properties of an active fraction of D. linearis through several in vitro assays and to determine its chemical profile. MATERIALS AND METHODS: The antioxidant activities were evaluated by DPPH and FRAP assays. The ability of the active fraction to induce fibroblast cell proliferation in serum deprived medium or under the challenge of exogenous hydrogen peroxide was evaluated by MTT assay. Cell migration was investigated using the scratch-wound assay. Chemical constituents of the active fraction were isolated and their structures were determined by NMR and MS spectroscopic techniques. Chemical profiling was carried out by the HPLC-UV method. RESULTS: The fifth subfraction of the methanol extract of D. linearis (sF5) showed prominent antioxidant activities. It was non-cytotoxic at the concentration tested and was able to induce cell proliferation of selected fibroblast cells under serum deprived conditions. In addition, sF5 was found to enhance cell migration and promote cellular repair following oxidative damage caused by hydrogen peroxide through a mechanism which was independent of its hydroxyl radical scavenging capability. Six phenolic glycosides were identified in sF5 where three were known, two were new and one phenolic glycoside first time reported from the plant. CONCLUSION: The active fraction of D. linearis which was rich in polyphenolic substances exhibited substantial antioxidant activities, induced cellular repair and contributed positively to fibroblasts proliferation and migration in vitro. Hence, it may have potential application in inducing wound recovery and supports its ethnopharmacological use for treating skin problems.
ETHNOPHARMACOLOGICAL RELEVANCE: Dicranopteris linearis is a fern used traditionally for the treatment of skin afflictions such as external wounds, boils and ulcers. However, there are no scientific studies to date to demonstrate its ability to induce wound recovery. The objective of the present study was to explore the wound healing properties of an active fraction of D. linearis through several in vitro assays and to determine its chemical profile. MATERIALS AND METHODS: The antioxidant activities were evaluated by DPPH and FRAP assays. The ability of the active fraction to induce fibroblast cell proliferation in serum deprived medium or under the challenge of exogenous hydrogen peroxide was evaluated by MTT assay. Cell migration was investigated using the scratch-wound assay. Chemical constituents of the active fraction were isolated and their structures were determined by NMR and MS spectroscopic techniques. Chemical profiling was carried out by the HPLC-UV method. RESULTS: The fifth subfraction of the methanol extract of D. linearis (sF5) showed prominent antioxidant activities. It was non-cytotoxic at the concentration tested and was able to induce cell proliferation of selected fibroblast cells under serum deprived conditions. In addition, sF5 was found to enhance cell migration and promote cellular repair following oxidative damage caused by hydrogen peroxide through a mechanism which was independent of its hydroxyl radical scavenging capability. Six phenolic glycosides were identified in sF5 where three were known, two were new and one phenolic glycoside first time reported from the plant. CONCLUSION: The active fraction of D. linearis which was rich in polyphenolic substances exhibited substantial antioxidant activities, induced cellular repair and contributed positively to fibroblasts proliferation and migration in vitro. Hence, it may have potential application in inducing wound recovery and supports its ethnopharmacological use for treating skin problems.
Authors: Giovanni Benelli; Filippo Maggi; Roman Pavela; Kadarkarai Murugan; Marimuthu Govindarajan; Baskaralingam Vaseeharan; Riccardo Petrelli; Loredana Cappellacci; Suresh Kumar; Anders Hofer; Mohammad Reza Youssefi; Abdullah A Alarfaj; Jiang-Shiou Hwang; Akon Higuchi Journal: Environ Sci Pollut Res Int Date: 2017-07-28 Impact factor: 4.223
Authors: Heloisa da S Pitz; Aline Pereira; Mayara B Blasius; Ana Paula L Voytena; Regina C L Affonso; Simone Fanan; Adriana C D Trevisan; Rosa M Ribeiro-do-Valle; Marcelo Maraschin Journal: Oxid Med Cell Longev Date: 2016-08-18 Impact factor: 6.543