Oberlies, Nicholas

UNCG

There are 19 item/s.

TitleDateViewsBrief Description
Use of adsorbent resins in fermentations of bacteria obtained from the red soils of the Kingdom of Jordan and the isolation and structure elucidation of cytotoxic xanthones from an unidentified fungus 2012 3225 Part I: Adsorbent resins are used in industrial fermentations to help boost the production of antibiotics. The resins used here were utilized to help speed the drug discovery process by eliminating the time-consuming step of freeze-drying the ferment...
Fingolimod (Gilenya; FTY720): a recently approved multiple sclerosis drug based on a fungal secondary metabolite and the creation of a natural products pure compound database and organized storage system 2012 13700 Fingolimod (Gilenya; FTY720), a synthetic compound based on the fungal secondary metabolite, myriocin (ISP-I), is a potent immunosuppressant that was approved in September 2010 by the U.S. FDA as a new treatment for multiple sclerosis (MS). Fingolimo...
Milk thistle flavonolignans: biomimetic synthesis, synthesis of analogues and biological evaluation of synthetic products 2013 12241 7-O-methylflavonolignans from milk thistle were synthesized by first isolating the seven primary components of silymarin and individually methylating them. Optimization of conditions allowed for each of these seven compounds to be selectively methyla...
Bioactive natural products: isolation of fungal secondary metabolites and applications of green chemistry 2013 7308 Natural products have played a significant role in the drug discovery especially in the area of cancer. Over the period of 1940-2010, 50% of the small molecules introduced as anticancer agents were either natural products or directly derived therefro...
Discovering new structural diversity from unexplored fungi 2014 3634 Discovery of anticancer drugs with high efficacy coupled with action at novel target sites is necessary to combat cancer. As part of a multidisciplinary project to identify anticancer leads from diverse natural product resources, our group has been s...
Quantitative analysis of grapefruit constituents involved in diet-drug interactions and modification of the microbial metabolome 2014 1400 The term "natural product" refers to secondary metabolites produced by living organisms, and therefore encompasses a number of research concentrations ranging from traditional medicines to microbial lead compounds to the impacts of diet on human heal...
Investigation into qNMR for use in natural products research 2016 304 Natural products research constantly has to deal with problems of analysis. Therefore, orthogonal techniques are extremely valuable when analyzing complex mixtures that are often seen in fungal extracts. Analysis of results of fungal fermentation exp...
Applications of mass spectrometry surface sampling techniques towards natural products research 2016 2014 Since the pharmaceutical industry has experienced a decline in output over the past decade, natural products research has regained interest. The complexity and molecular diversity seen in nature remains unmatched, even against combinatorial chemistry...
Isolation of fungal secondary metabolites: leporin B, benzoisoquinoline and related compounds 2017 920 Natural products have proven to be a good source of anticancer drugs since the 1940’s. In fact, they have influenced the creation of 65% of all 246 anticancer drugs since that time. Fungi in particular provide an almost untapped source of compounds w...
Investigating the diversity of secondary metabolites from filamentous fungi 2017 524 Natural products continue to be a fertile source of leads for drug discovery, as a large extent of the world’s biodiversity has been untapped for their chemical diversity and biological activity. With the continuing need for new drug leads due to the...
Growth media studies approach to enhance production of the bioactive fungal metabolite viridicatumtoxin A 2018 368 Viridicatumtoxin A is a unique tetracycline-like aromatic polyketide first isolated as a mycotoxin from Penicillium viridicatum in 1973. Along with its 5-oxo derivative, viridicatumtoxin B, discovered in 2008 from the liquid fermentation cultures of ...
Studies on epipolythiodioxopiperazine alkaloids 2019 181 Natural products research remains a fertile source for drug discovery due to the complexity, chemical diversity and biological activity of compounds discovered from nature. Verticillins are members of the epipolythiodioxopiperazine (ETP) alkaloid cla...
Isolation of novel naphthoquinones from fungal strain MSX53507, Cladorrhinum sp. 2019 99 This study was conducted as part of an ongoing collaborative project to investigate the chemical diversity of fungi in search of new anticancer drug leads. Fungi have shown to be prolific producers of dynamic secondary metabolites, which exhibit a va...
Steps in the journey to advance the study of nature’s chemistry 2019 180 “A journey of a thousand miles begins with a single step” is a saying from the philosopher of Laozi, the founder of Taosim, and Taoism believes in living in harmony with the universe or nature itself. This seems particularly appropriate to describe t...
Dasyscyphins F and G, new drimane meroterpenoids from a Fitzroyomyces species 2020 135 As part of an ongoing investigation into the pharmaceutical potential of filamentous fungi, two new drimane meroterpenoids were discovered, which showed moderate cytotoxic activity across three cancer cell lines (MDA-MB-435, MDA-MB-231, OVCAR3). Comp...
Precursor directed biosynthesis for the discovery of ‘non-natural’ natural products in fungi 2020 188 Verticillins are a class of dimeric epipolythiodioxopiperazine alkaloids that are known to have IC50 values of 10 nM or less in various human cancer cell lines This biological activity makes them potential candidates in the search of new anticancer d...
The pursuit of chemical diversity in fungi 2020 332 Fungi are ever changing their secondary metabolites profile in order to adapt to their environment. Previously characterized fungal cultures were re-analyzed with the intention of re-isolating scaled up quantities of metabolites of interest. However,...
Studies on the genotype, phenotype, and co-cultures of Aspergillus section Fumigati and the development of new techniques to enhance structure elucidation of fungal metabolites 2021 424 Fungi are pathogenic to plants, humans, and animals, and secondary metabolites produced by fungi are implicated in these interactions. As part of an interdisciplinary project to identify the chemical and genomic differences between pathogenic and non...
Preclinical development of fungal secondary metabolites and the discovery of new metabolites with cytotoxic properties 2021 243 Cancer is still the second leading cause of deaths worldwide and responsible for nearly 10.0 million deaths in 2020. In addition to the high morbidity and mortality rate, cancer results in a significant economic burden on the healthcare systems and c...