Results 21 to 30 of about 1,299 (187)

Antigenotoxicity of Depsidones Isolated from Brazilian Lichens

Orbital: The Electronic Journal of Chemistry, 2017
Although phenolic compounds produced by lichens have been widely investigated in antitumor assays, only a small number have been evaluated for mutagenicity and genotoxicity.
Zaira da Rosa Guterres, Neli Kika Honda, Roberta Gomes Coelho, Glaucia Braz Alcantara, Ana Camila Micheletti   +4 more
doaj   +4 more sources

Lichen-Derived Depsides and Depsidones Modulate the Nrf2, NF-κB and STAT3 Signaling Pathways in Colorectal Cancer Cells

Molecules, 2021
The study aimed to evaluate the possible modulation of Nrf2, NF-ĸB and STAT3 signaling pathways in the colorectal cancer (CRC) cells line DLD-1 and HCT116 by secondary metabolites of lichens.
Katarzyna Papierska, Violetta Krajka-Kuźniak, Jarosław Paluszczak, Robert Kleszcz, Marcin Skalski, Elżbieta Studzińska-Sroka, Wanda Baer-Dubowska   +6 more
doaj   +2 more sources

Phytochemical Profiling of Sticta caulescens De Not.: Green Extraction and Multiscale Chemotaxonomic Analysis [PDF]

Plants
The aim of this research was to identify the wealth of secondary metabolites in the Chilean lichen Sticta caulescens, applying green chemistry approaches and comparing the following two extraction methods: (a) conventional maceration with methanol, and ...
Nicolás Cifuentes-Araya, Diego Valdivia, Mariano Walter Pertino, Daniela Marroquín-Guerra, Osvaldo Yáñez, Olimpo García-Beltrán, Alejandro Ardiles, Carlos Areche   +7 more
doaj   +2 more sources

Extraction of lichen bioactive compounds using volatile natural deep eutectic solvents and comparative analytical approaches [PDF]

Scientific Reports
Lichens are a source of bioactive secondary metabolites with different pharmacological activities. However, these metabolites are challenging regarding their extraction.
S. Dresler, I. Baczewska, O. Mykhailenko, Ch. Zidorn, I. Sowa, M. Wójciak, M. Feldo, H. Wójciak, A. Hanaka, M. Strzemski   +9 more
doaj   +2 more sources

Discovery of Fungus-Derived Nornidulin as a Novel TMEM16A Inhibitor: A Potential Therapy to Inhibit Mucus Secretion in Asthma [PDF]

Journal of Experimental Pharmacology, 2023
Pawin Pongkorpsakol,1,* Chantapol Yimnual,2,* Wilasinee Satianrapapong,3 Nichakorn Worakajit,4 Suchada Kaewin,2 Praphatsorn Saetang,5 Vatcharin Rukachaisirikul,5 Chatchai Muanprasat2 1Princess Srisavangavadhana College of Medicine, Chulabhorn ...
Pongkorpsakol P, Yimnual C, Satianrapapong W, Worakajit N, Kaewin S, Saetang P, Rukachaisirikul V, Muanprasat C   +7 more
doaj   +2 more sources

Mollicellins O–R, Four New Depsidones Isolated from the Endophytic Fungus Chaetomium sp. Eef-10

Molecules, 2018
Four new depsidones, mollicellins O⁻R (compounds 1⁻4), along with three known compounds 5⁻7, were isolated from cultures of the fungus Chaetomium sp. Eef-10, an endophyte isolated from Eucalyptus exserta.
Jinkui Ouyang, Ziling Mao, Hui Guo, Yunying Xie, Zehua Cui, Jian Sun, Huixiong Wu, Xiujun Wen, Jun Wang, Tijiang Shan   +9 more
doaj   +2 more sources

Two New Fumarprotocetraric Acid Lactones Identified and Characterized by UHPLC-PDA/ESI/ORBITRAP/MS/MS from the Antarctic Lichen Cladonia metacorallifera

Separations, 2022
Lichens are symbiotic organisms between algae and fungi, which are makers of secondary compounds named as lichen substances. Hyphenated techniques have significantly helped natural product chemistry, especially UHPLC/ESI/MS/MS in the identification ...
Beatriz Sepúlveda, Alberto Cornejo, Daniela Bárcenas-Pérez, José Cheel, Carlos Areche   +4 more
doaj   +1 more source

Anti-Osteoclastogenic and Antibacterial Effects of Chlorinated Polyketides from the Beibu Gulf Coral-Derived Fungus Aspergillus unguis GXIMD 02505

Marine Drugs, 2022
One new depsidone derivative, aspergillusidone H (3), along with seven known biosynthetically related chlorinated polyketides, were obtained from the Beibu Gulf coral-derived fungus Aspergillus unguis GXIMD 02505.
Yanting Zhang, Zhichao Li, Bingyao Huang, Kai Liu, Shuai Peng, Xinming Liu, Chenghai Gao, Yonghong Liu, Yanhui Tan, Xiaowei Luo   +9 more
doaj   +1 more source

How to build a lichen: from metabolite release to symbiotic interplay

New Phytologist, Volume 238, Issue 4, Page 1362-1378, May 2023., 2023
Summary Exposing their vegetative bodies to the light, lichens are outstanding amongst other fungal symbioses. Not requiring a pre‐established host, ‘lichenized fungi’ build an entirely new structure together with microbial photosynthetic partners that neither can form alone.
Gregor Pichler, Lucia Muggia, Fabio Candotto Carniel, Martin Grube, Ilse Kranner   +4 more
wiley   +1 more source

Two‐step isolation of the two major paraconic acids of Cetraria islandica

Journal of Separation Science, Volume 46, Issue 6, March 2023., 2023
The lichen Cetraria islandica is traditionally used as a demulcent for the symptomatic treatment of irritations of the mouth and throat and associated dry cough, as well as for the treatment of temporary loss of appetite. In addition to depsides and depsidones, thalli contain paraconic acids, a group of secondary metabolites commonly found in lichens ...
Eduardo Villicaña González, Stefan Schwaiger, Hermann Stuppner   +2 more
wiley   +1 more source