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Sphingolipid Metabolism and Signaling: Role in Health and Diseases—2nd Edition
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Sphingolipid Metabolism and Signaling: Role in Health and Diseases—2nd Edition

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Biochemistry".

Deadline for manuscript submissions: 20 June 2025 | Viewed by 4192

Special Issue Editor

Dr. Paola Giussani

E-Mail Website
Guest Editor
Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, LITA Segrate, Via Fratelli Cervi, 93, 20090 Segrate, Italy
Interests: sphingolipids; sphingosine-1-phosphate; ceramide; signaling; cancer; multiple sclerosis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Sphingolipids are a class of lipids that are highly expressed in eukaryotic cells. Sphingolipids are ubiquitous components of cell membranes as well as bioactive molecules involved in the control of cell fate in physiological and pathophysiological processes. Sphingolipid metabolism and signaling are crucial for the maintenance of physiological conditions, but, on the other hand, the dysregulation of sphingolipid metabolism, leading to altered sphingolipid patterns, is associated with different pathological conditions. Sphingolipid levels are regulated via the modulation of the metabolism of specific enzymes as well as that of the specific receptors or transporters involved in their transport within or outside cells; however, the exact molecular mechanisms mediated by sphingolipids with which to modulate cell homeostasis are still not completely understood. New knowledge on the metabolism and signaling of sphingolipids will help in finding therapeutic solutions in a variety of human diseases.

For this Special Issue, “Sphingolipid Metabolism and Signaling: Role in Health and Diseases—2nd Edition”, we welcome your contributions in the form of original research and review articles on all aspects of sphingolipids and their roles in physiological and pathophysiological processes.

Dr. Paola Giussani
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

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Keywords

  • sphingolipids
  • sphingosine-1-phosphate
  • ceramide
  • glycosphingolipids
  • sphingolipid-mediated signaling
  • cancer
  • neurodegenerative diseases
  • inflammatory diseases
  • diabetes

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Published Papers (3 papers)

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Research

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11 pages, 1305 KiB  
Article
Untargeted Urinary Volatilomics Reveals Hexadecanal as a Potential Biomarker for Preeclampsia
by Marina Pehlić, Stipe Dumančić, Mila Radan, Jelena Galić, Branimir Gruica, Sandra Marijan and Marko Vulić
Int. J. Mol. Sci. 2024, 25(22), 12371; https://doi.org/10.3390/ijms252212371 - 18 Nov 2024
Cited by 1 | Viewed by 1043
Abstract
Preeclampsia (PE) is a severe hypertensive pregnancy disorder characterized by endothelial dysfunction, placental ischemia and oxidative stress; however, reliable non-invasive biomarkers for early detection are limited. In this study, untargeted solid-phase microextraction with gas chromatography–mass spectrometry (SPME-GC-MS) was used to analyze volatile organic [...] Read more.
Preeclampsia (PE) is a severe hypertensive pregnancy disorder characterized by endothelial dysfunction, placental ischemia and oxidative stress; however, reliable non-invasive biomarkers for early detection are limited. In this study, untargeted solid-phase microextraction with gas chromatography–mass spectrometry (SPME-GC-MS) was used to analyze volatile organic compounds in the urine of 45 women with PE and 46 healthy controls. Among the 29 metabolites identified, hexadecanal—a product of lipid peroxidation and sphingolipid metabolism—was found to be the most significant, with an area under the receiver operating characteristic (ROC) curve of 0.618, highlighting its diagnostic potential. This result emphasizes the role of hexadecanal in oxidative stress and placental dysfunction, which are central to the pathophysiology of PE. The results support hexadecanal as a potential non-invasive biomarker while demonstrating the efficacy of SPME-GC-MS in identifying metabolic disorders associated with PE, paving the way for further research to confirm its clinical utility for early diagnosis and risk assessment. Full article
(This article belongs to the Special Issue Sphingolipid Metabolism and Signaling: Role in Health and Diseases—2nd Edition)
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15 pages, 2245 KiB  
Article
Monitoring Myelin Lipid Composition and the Structure of Myelinated Fibers Reveals a Maturation Delay in CMT1A
by Giovanna Capodivento, Mattia Camera, Nara Liessi, Anna Trada, Doriana Debellis, Angelo Schenone, Andrea Armirotti, Davide Visigalli and Lucilla Nobbio
Int. J. Mol. Sci. 2024, 25(20), 11244; https://doi.org/10.3390/ijms252011244 - 19 Oct 2024
Cited by 1 | Viewed by 1634
Abstract
Findings accumulated over time show that neurophysiological, neuropathological, and molecular alterations are present in CMT1A and support the dysmyelinating rather than demyelinating nature of this neuropathy. Moreover, uniform slowing of nerve conduction velocity is already manifest in CMT1A children and does not improve [...] Read more.
Findings accumulated over time show that neurophysiological, neuropathological, and molecular alterations are present in CMT1A and support the dysmyelinating rather than demyelinating nature of this neuropathy. Moreover, uniform slowing of nerve conduction velocity is already manifest in CMT1A children and does not improve throughout their life. This evidence and our previous studies displaying aberrant myelin composition and structure in adult CMT1A rats prompt us to hypothesize a myelin and axon developmental defect in the CMT1A peripheral nervous system. Peripheral myelination begins during the early stages of development in mammals and, during this process, chemical and structural features of myelinated fibers (MFs) evolve towards a mature phenotype; deficiencies within this self-modulating circuit can cause its blockage. Therefore, to shed light on pathophysiological mechanisms that occur during development, and to investigate the relationship among axonal, myelin, and lipidome deficiencies in CMT1A, we extensively analyzed the evolution of both myelin lipid profile and MF structure in WT and CMT1A rats. Lipidomic analysis revealed a delayed maturation of CMT1A myelin already detectable at P10 characterized by a deprivation of sphingolipid species such as hexosylceramides and long-chain sphingomyelins, whose concentration physiologically increases in WT, and an increase in lipids typical of unspecialized plasma membranes, including phosphatidylcholines and phosphatidylethanolamines. Consistently, advanced morphometric analysis on more than 130,000 MFs revealed a delay in the evolution of CMT1A axon and myelin geometric parameters, appearing concomitantly with lipid impairment. We here demonstrate that, during normal development, MFs undergo a continuous maturation process in both chemical composition and physical structure, but these processes are delayed in CMT1A. Full article
(This article belongs to the Special Issue Sphingolipid Metabolism and Signaling: Role in Health and Diseases—2nd Edition)
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Review

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17 pages, 1132 KiB  
Review
Sphingosine-1-Phosphate Metabolic Pathway in Cancer: Implications for Therapeutic Targets
by Miguel L. Rufail, Rosaria Bassi and Paola Giussani
Int. J. Mol. Sci. 2025, 26(3), 1056; https://doi.org/10.3390/ijms26031056 - 26 Jan 2025
Cited by 1 | Viewed by 1002
Abstract
Cancer biology revolves around understanding how cells undergo uncontrolled proliferation leading to the formation of malignant tumors. Key aspects include self-sufficiency in growth signals, the lack of response to signals of growth inhibition, the evasion of apoptosis, sustained angiogenesis, the evasion of immune [...] Read more.
Cancer biology revolves around understanding how cells undergo uncontrolled proliferation leading to the formation of malignant tumors. Key aspects include self-sufficiency in growth signals, the lack of response to signals of growth inhibition, the evasion of apoptosis, sustained angiogenesis, the evasion of immune response, the capacity to invade and metastasize, and alterations in cellular metabolism. A vast amount of research, which is exponentially growing, over the past few decades highlights the role of sphingolipids in cancer. They act not only as structural membrane components but also as bioactive molecules that regulate cell fate in different physio-pathological conditions. In cancer, sphingolipid metabolism is dysregulated, contributing to tumor progression, metastasis, and drug resistance. In this review, we outline the impact of sphingosine-1-phosphate (S1P) as a key bioactive sphingolipid in cancer. We give an overview of its metabolism summarizing the role of S1P as an intracellular and extracellular mediator through specific plasma membrane receptors in different cancers. We also describe previous findings on how the disruption in the balance between S1P and ceramide (Cer) is common in cancer cells and can contribute to tumorigenesis and resistance to chemotherapy. We finally consider the potential of targeting the metabolic pathways of S1P as well as its receptors and transporters as a promising therapeutic approach in cancer treatments. Full article
(This article belongs to the Special Issue Sphingolipid Metabolism and Signaling: Role in Health and Diseases—2nd Edition)
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