Perspectives of Sphingolipids

A special issue of Biomolecules (ISSN 2218-273X). This special issue belongs to the section "Cellular Biochemistry".

Deadline for manuscript submissions: closed (30 September 2020) | Viewed by 4891

Special Issue Editor


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Guest Editor
Molecular Neurobiology, Department of Psychiatry and Psychotherapy, Friedrich-Alexander University Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
Interests: molecular neurobiology; molecular psychiatry; biomarkers for psychiatric diseases; alcohol dependence; depression; sphingolipid metabolism; psychoneuroendocrinology; assay development

Special Issue Information

Dear Colleagues,

Despite the exciting recent advances in techniques and the remarkable progress in the field, sphingolipids, termed after the mythological sphinx, still remain enigmatic because of their unprecedented complexity and their function both as membrane components and bioactive molecules. It is estimated that there are thousands of individual molecular sphingolipid species with heterogeneous cellular and subcellular localization, and a large variety of enzymes involved in their metabolism allow for a wide field of research and for possible applications. These compounds regulate critical cellular processes, such as cell proliferation, differentiation, migration, and cell death, and thus alterations can contribute to changed susceptibility, and to the development or maintenance of key human disorders like cancer, cardiovascular, neuropsychiatric, or inflammatory diseases.

The aim of this Special Issue on “Perspectives of Sphingolipids” is, on the one hand, to provide an overview of the potential for sphingolipids as biomarkers for the diagnosis, subtyping or classification, monitoring of therapy, or prognosis of various disorders. The identification of altered sphingolipid compositions and the enzymes involved in their pathways could also lead to the development of novel preventive and therapeutic approaches. However, the capacity of sphingolipids is not restricted to pathophysiology; these biomolecules could also serve other functions, including as probes or markers for physiological processes from bacteria to plants or biotechnology, or as distinct interacting partners. On the other hand, original articles are invited to contribute to these challenging areas, and to highlight discoveries on prospective applications of specific sphingolipid species.

I am looking forward to your contributions to advancing this fascinating field.

Dr. Christiane Mühle
Guest Editor

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Keywords

  • sphingolipids
  • lipidomics
  • biomarker discovery
  • bioactive lipids
  • ceramide
  • sphingomyelin
  • therapeutic applications

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Published Papers (1 paper)

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6 pages, 689 KiB  
Brief Report
Isolation and Quantification of Sphingosine and Sphinganine from Rat Serum Revealed Gender Differences
by Graham Brogden, Diab M. Husein, Pablo Steinberg and Hassan Y. Naim
Biomolecules 2019, 9(9), 459; https://doi.org/10.3390/biom9090459 - 7 Sep 2019
Cited by 6 | Viewed by 4549
Abstract
Sphingolipids are an important group of lipids that play crucial roles in living cells, facilitating cell recognition, signal transduction and endocytosis. The concentration of sphingosine and some of its derivatives like sphinganine may serve as a biomarker for the diagnosis of sphingolipidoses or [...] Read more.
Sphingolipids are an important group of lipids that play crucial roles in living cells, facilitating cell recognition, signal transduction and endocytosis. The concentration of sphingosine and some of its derivatives like sphinganine may serve as a biomarker for the diagnosis of sphingolipidoses or be used for further research into similar diseases. In this study, a sphingolipid extraction and a high resolution detection method specific for sphingosine and sphinganine was adapted and tested. Lipids were extracted from rats’ serum, coupled to o-phthalaldehyde and detected with a fluorescence detector after running through a silica gel column in a high performance liquid chromatography system. With this method, we analysed 20 male and 20 female rat serum samples and compared the concentrations of sphingosine and sphinganine. The results showed a significant difference between the sphingosine concentrations in the male and female rats. The sphingosine concentration in female rats was 805 ng/mL (standard deviation, SD ± 549), while that in males was significantly lower at (75 ng/mL (SD ± 40)). Furthermore, the sphingosine:sphinganine ratio was almost 15-fold higher in the females’ samples. The method presented here facilitates the accurate quantification of sphingosine and sphinganine concentrations down to 2.6 ng and 3.0 ng, respectively, and their ratio in small amounts of rat serum samples to study the sphingolipid metabolism and its potential modulation due to gene mutations or the effect of prevalent toxins. Full article
(This article belongs to the Special Issue Perspectives of Sphingolipids)
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