PMID- 34890540 OWN - NLM STAT- MEDLINE DCOM- 20220214 LR - 20220531 IS - 1873-6254 (Electronic) IS - 0001-706X (Linking) VI - 226 DP - 2022 Feb TI - Phytochemical, anti-Acanthamoeba, and anti-adhesion properties of Garcinia mangostana flower as preventive contact lens solution. PG - 106266 LID - S0001-706X(21)00444-7 [pii] LID - 10.1016/j.actatropica.2021.106266 [doi] AB - Acanthamoeba keratitis infection extends due to the growing number of contact lens users. Indigenous plants including Garcinia mangostana play a vital role in human health and well being. Many species of this plant have been reported with myriads of potent medicinal properties. However, the aims of this study were, for the first time, to isolate compounds from the flower of G. mangostana and to test their anti-Acanthamoeba and anti-adhesion activity against Acanthamoeba triangularis. Powdered flowers of G. mangostana were extracted and chromatographed on a silica gel column. The structures of the compounds were established with the aid of (1)H NMR. More so, the anti-Acanthamoeba and anti-adhesion properties were tested on a 96-well polystyrene microtiter plate and soft contact lenses. Scanning electron microscope (SEM) was used to determine the features of A. triangularis on contact lenses. Eight pure compounds were obtained, namely 9-hydroxycalabaxanthone, tovophillin A, garcinone E, garcinone B, alpha-mangostin, gartinin, 8-deoxygartinin and gamma-mangostin. The extract and pure compounds exhibited anti-Acanthamoeba activity with MIC values in the range of 0.25-1 mg/mL. In addition, the extract and alpha-mangostin displayed significant activity against the adhesion of A. triangularis trophozoites both in polystyrene plate and in contact lenses at 0.5 x MIC (0.25 mg/mL). Furthermore, alpha-mangostin has the potential to remove A. triangularis adhesion in contact lenses similar to a commercial multipurpose solution (MPS). SEM study confirmed that crude extract and alpha-mangostin are effective as solutions for contact lenses, which removed A. triangularis trophozoites within 24 h. Alpha-mangostin was non-toxic to Vero cells at a concentration below 39 muM in 24 h. Crude extract of G. mangostana flower and its alpha-mangostin serve as candidate compounds in the treatment of Acanthamoeba infection or as lens care solution, since they can be used as a source of natural products against Acanthamoeba and virulence factor associated with the adhesion of A. triangularis. CI - Copyright (c) 2021 Elsevier B.V. All rights reserved. FAU - Sangkanu, Suthinee AU - Sangkanu S AD - School of Allied Health Sciences, Southeast Asia Water Team (SEA Water Team), World Union for Herbal Drug Discovery (WUHeDD), and Research Excellence Center for Innovation and Health Products (RECIHP), Walailak University, Nakhon Si Thammarat, Thailand. FAU - Mitsuwan, Watcharapong AU - Mitsuwan W AD - Akkhraratchumari Veterinary College, Walailak University, Nakhon Si Thammarat, Thailand. FAU - Mahboob, Tooba AU - Mahboob T AD - School of Allied Health Sciences, Southeast Asia Water Team (SEA Water Team), World Union for Herbal Drug Discovery (WUHeDD), and Research Excellence Center for Innovation and Health Products (RECIHP), Walailak University, Nakhon Si Thammarat, Thailand. FAU - Mahabusarakam, Wilawan AU - Mahabusarakam W AD - Division of Physical Science, Faculty of Science, Graduate School, Prince of Songkla University, Songkhla 90110, Thailand. Electronic address: wilawan.m@psu.ac.th. FAU - Chewchanwuttiwong, Sopa AU - Chewchanwuttiwong S AD - Faculty of Science and Industrial Technology, Prince of Songkla University, Surat Thani Campus, Makhamtae, Surat Thani, Muang, Thailand. FAU - Siphakdi, Panisara AU - Siphakdi P AD - Faculty of Science and Industrial Technology, Prince of Songkla University, Surat Thani Campus, Makhamtae, Surat Thani, Muang, Thailand. FAU - Jimoh, Tajudeen O AU - Jimoh TO AD - Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand; Department of Biochemistry, Faculty of Health Sciences, Islamic University in Uganda, P. O. Box 7689, Kampala, Uganda. FAU - Wilairatana, Polrat AU - Wilairatana P AD - Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand. FAU - Dolma, Karma G AU - Dolma KG AD - Department of Microbiology, Sikkim Manipal Institute of Medical Sciences, Sikkim, India. FAU - Pereira, Maria de Lourdes AU - Pereira ML AD - Department of Medical Sciences, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal. FAU - Rahmatullah, Mohammed AU - Rahmatullah M AD - Department of Biotechnology & Genetic Engineering, University of Development Alternative, Lalmatia, Dhaka, Bangladesh. FAU - Wiart, Christophe AU - Wiart C AD - Institute for Tropical Biology & Conservation, University Malaysia Sabah, Malaysia. FAU - Norouzi, Roghayeh AU - Norouzi R AD - Department of Pathobiology, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran. FAU - Siyadatpanah, Abolghasem AU - Siyadatpanah A AD - Ferdows School of Paramedical and Health, Birjand University of Medical Sciences, Birjand, Iran. FAU - Mutombo, Polydor Ngoy AU - Mutombo PN AD - National Centre for Naturopathic Medicine, Faculty of Health Sciences, Southern Cross University, Lismore, NSW, Australia. FAU - Nissapatorn, Veeranoot AU - Nissapatorn V AD - School of Allied Health Sciences, Southeast Asia Water Team (SEA Water Team), World Union for Herbal Drug Discovery (WUHeDD), and Research Excellence Center for Innovation and Health Products (RECIHP), Walailak University, Nakhon Si Thammarat, Thailand.. Electronic address: nissapat@gmail.com. LA - eng PT - Journal Article DEP - 20211208 PL - Netherlands TA - Acta Trop JT - Acta tropica JID - 0370374 RN - 0 (Contact Lens Solutions) RN - 0 (Phytochemicals) RN - 0 (Plant Extracts) SB - IM MH - *Acanthamoeba/drug effects MH - Animals MH - Chlorocebus aethiops MH - *Contact Lens Solutions MH - Flowers/chemistry MH - *Garcinia mangostana/chemistry MH - Humans MH - Phytochemicals/pharmacology MH - Plant Extracts/*pharmacology MH - Vero Cells OTO - NOTNLM OT - Acanthamoeba triangularis OT - Anti-Acanthamoeba activity OT - Anti-adhesion activity OT - Contact lens OT - Garcinia mangostana flower OT - alpha-Mangostin EDAT- 2021/12/11 06:00 MHDA- 2022/02/15 06:00 CRDT- 2021/12/10 20:12 PHST- 2021/04/05 00:00 [received] PHST- 2021/12/01 00:00 [revised] PHST- 2021/12/05 00:00 [accepted] PHST- 2021/12/11 06:00 [pubmed] PHST- 2022/02/15 06:00 [medline] PHST- 2021/12/10 20:12 [entrez] AID - S0001-706X(21)00444-7 [pii] AID - 10.1016/j.actatropica.2021.106266 [doi] PST - ppublish SO - Acta Trop. 2022 Feb;226:106266. doi: 10.1016/j.actatropica.2021.106266. Epub 2021 Dec 8.