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Bankole T, Ma T, Arora I, Lei Z, Raju M, Li Z, Li Y. The Effect of Broccoli Glucoraphanin Supplementation on Ameliorating High-Fat-Diet-Induced Obesity through the Gut Microbiome and Metabolome Interface. Mol Nutr Food Res 2024; 68:e2300856. [PMID: 38676466 DOI: 10.1002/mnfr.202300856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 03/22/2024] [Indexed: 04/29/2024]
Abstract
SCOPE Obesity and its metabolic comorbidities pose a major global challenge for public health. Glucoraphanin (GRN) is a natural bioactive compound enriched in broccoli that is known to have potential health benefits against various human chronic diseases. METHODS AND RESULTS This study investigats the effects of broccoli GRN supplementation on body weight, metabolic parameters, gut microbiome and metabolome associated with obesity. The study is conducted on an obese-related C57BL/6J mouse model through the treatment of normal control diet, high-fat diet (HFD)and GRN-supplemented HFD (HFD-GRN) to determine the metabolic protection of GRN. The results shows that GRN treatment alleviates obesity-related traits leading to improved glucose metabolism in HFD-fed animals. Mechanically, the study noticed that GRN significantly shifts the gut microbial diversity and composition to an eubiosis status. GRN supplement also significantly alters plasma metabolite profiles. Further integrated analysis reveal a complex interaction between the gut microbes and host metabolism that may contribute to GRN-induced beneficial effects against HFD. CONCLUSION These results indicate that beneficial effects of broccoli GRN on reversing HFD-induced adverse metabolic parameters may be attributed to its impacts on reprogramming microbial community and metabolites. Identification of the mechanistic functions of GRN further warrants it as a dietary candidate for obesity prevention.
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Affiliation(s)
- Taiwo Bankole
- Department of Nutrition and Food Science, University of Maryland, College Park, MD, 20742, USA
| | - Tianzhou Ma
- Department of Epidemiology and Biostatistics, University of Maryland, College Park, MD, 20742, USA
| | - Itika Arora
- Department of Microbiology and Immunology, University of Miami, Miami, FL, 33136, USA
| | - Zhentian Lei
- Metabolomics Center, University of Missouri at Columbia, Columbia, MO, 65211, USA
| | - Murugesan Raju
- Bioinformatics and Analytics Core, University of Missouri at Columbia, Columbia, MO, 65211, USA
| | - Zhenhai Li
- Department of Nutrition and Food Science, University of Maryland, College Park, MD, 20742, USA
| | - Yuanyuan Li
- Department of Nutrition and Food Science, University of Maryland, College Park, MD, 20742, USA
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D'Cruz LM. From academia to industry: how reinvention and understanding your motivations can help you find your path. Immunol Cell Biol 2024; 102:160-163. [PMID: 37842768 DOI: 10.1111/imcb.12703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
In July 1999, I took my final curtsey as an aspiring ballet dancer in London. At the time, I was devastated, having been "assessed out" by the ballet school I'd attended the year after I finished high school in Ireland. I wish I knew then what I know now: there are no endings in a career, just different paths. It took a few more iterations for me to learn that lesson. I hope my experience described in this article can provide some reassurance for anyone out there grappling with their next career move.
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Zhang B, Wang C, Wu H, Wang F, Chai Y, Hu Y, Wang B, Yu Z, Xia R, Xu R, Cao X. MFSD2A potentiates gastric cancer response to anti-PD-1 immunotherapy by reprogramming the tumor microenvironment to activate T cell response. Cancer Commun (Lond) 2023; 43:1097-1116. [PMID: 37539769 PMCID: PMC10565382 DOI: 10.1002/cac2.12476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 06/12/2023] [Accepted: 07/25/2023] [Indexed: 08/05/2023] Open
Abstract
BACKGROUND The efficacy of anti-programmed cell death protein 1 (PD-1) immunotherapy in various cancers, including gastric cancer (GC), needs to be potentiated by more effective targeting to enhance therapeutic efficacy or identifying accurate biomarkers to predict clinical responses. Here, we attempted to identify molecules predicting or/and promoting anti-PD-1 therapeutic response in advanced GC (AGC). METHODS The transcriptome of AGC tissues from patients with different clinical responses to anti-PD-1 immunotherapy and GC cells was analyzed by RNA sequencing. The protein and mRNA levels of the major facilitator superfamily domain containing 2A (MFSD2A) in GC cells were assessed via quantitative real-time polymerase chain reaction, Western blotting, and immunohistochemistry. Additionally, the regulation of anti-PD-1 response by MFSD2A was studied in tumor-bearing mice. Cytometry by Time-of-Flight, multiple immunohistochemistry, and flow cytometry assays were used to explore immunological responses. The effects of MFSD2A on lipid metabolism in mice cancer tissue and GC cells was detected by metabolomics. RESULTS Higher expression of MFSD2A in tumor tissues of AGC patients was associated with better response to anti-PD-1 immunotherapy. Moreover, MFSD2A expression was lower in GC tissues compared to adjacent normal tissues, and its expression was inversely correlated with GC stage. The overexpression of MFSD2A in GC cells enhanced the efficacy of anti-PD-1 immunotherapy in vivo by reprogramming the tumor microenvironment (TME), characterized by increased CD8+ T cell activation and reduced its exhaustion. MFSD2A inhibited transforming growth factor β1 (TGFβ1) release from GC cells by suppressing cyclooxygenase 2 (COX2)-prostaglandin synthesis, which consequently reprogrammed TME to promote anti-tumor T cell activation. CONCLUSIONS MFSD2A potentially serves as a predictive biomarker for anti-PD-1 immunotherapy response in AGC patients. MFSD2A may be a promising therapeutic target to potentiate the efficacy of anti-PD-1 immunotherapy by reprogramming the TME to promote T cells activation.
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Affiliation(s)
- Bin Zhang
- National Key Laboratory of Immunity and InflammationSuzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical CollegeSuzhouJiangsuP. R. China
| | - Chun‐Mei Wang
- National Key Laboratory of Immunity and InflammationSuzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical CollegeSuzhouJiangsuP. R. China
- Department of ImmunologyCenter for ImmunotherapyInstitute of Basic Medical SciencesChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingP. R. China
| | - Hao‐Xiang Wu
- Sun Yat‐sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer MedicineGuangzhouGuangdongP. R. China
| | - Feng Wang
- Sun Yat‐sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer MedicineGuangzhouGuangdongP. R. China
| | - Yang‐Yang Chai
- Department of ImmunologyCenter for ImmunotherapyInstitute of Basic Medical SciencesChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingP. R. China
| | - Ye Hu
- Institute of Immunology, College of Life Sciences, Nankai UniversityTianjinP. R. China
| | - Bing‐Jing Wang
- Department of ImmunologyCenter for ImmunotherapyInstitute of Basic Medical SciencesChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingP. R. China
| | - Zhou Yu
- National Key Laboratory of Immunity and InflammationSuzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical CollegeSuzhouJiangsuP. R. China
| | - Rong‐Hua Xia
- National Key Laboratory of Immunity and InflammationSuzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical CollegeSuzhouJiangsuP. R. China
| | - Rui‐Hua Xu
- Sun Yat‐sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer MedicineGuangzhouGuangdongP. R. China
| | - Xue‐Tao Cao
- National Key Laboratory of Immunity and InflammationSuzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical CollegeSuzhouJiangsuP. R. China
- Department of ImmunologyCenter for ImmunotherapyInstitute of Basic Medical SciencesChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingP. R. China
- Institute of Immunology, College of Life Sciences, Nankai UniversityTianjinP. R. China
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Bui S, Dancourt J, Lavieu G. Virus-Free Method to Control and Enhance Extracellular Vesicle Cargo Loading and Delivery. ACS APPLIED BIO MATERIALS 2023; 6:1081-1091. [PMID: 36781171 PMCID: PMC10031566 DOI: 10.1021/acsabm.2c00955] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Extracellular vesicles (EVs)─including exosomes and microvesicles─are involved in cell-cell communication. EVs encapsulate different types of molecules such as proteins or nucleotides and are long-lasting contenders for the establishment of personalized drug delivery systems. Recent studies suggest that the intrinsic capacities for uptake and cargo delivery of basic EVs might be too limited to serve as a potent delivery system. Here, we develop two synergistic methods to, respectively, control EV cargo loading and enhance EV cargo delivery through fusion without requirement for any viral fusogenic protein. Briefly, cargo loading is enabled through a reversible drug-inducible system that triggers the interaction between a cargo of interest and CD63, a well-established transmembrane EV marker. Enhanced cargo delivery is promoted by overexpressing Syncytin-1, an endogenous retrovirus envelop protein with fusogenic properties encoded by the human genome. We validate our bioengineered EVs in a qualitative and quantitative manner. Finally, we utilize this method to develop highly potent killer EVs, which contain a lethal toxin responsible for protein translation arrest and acceptor cell death. These advanced methods and future downstream applications may open promising doors in the manufacture of virus-free and EV-based delivery systems.
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Affiliation(s)
- Sheryl Bui
- INSERM U1316, CNRS UMR 7057, Université Paris Cité, 75006 Paris, France
| | - Julia Dancourt
- INSERM U1316, CNRS UMR 7057, Université Paris Cité, 75006 Paris, France
| | - Gregory Lavieu
- INSERM U1316, CNRS UMR 7057, Université Paris Cité, 75006 Paris, France
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Chua GL, Tan BC, Loke RYJ, He M, Chin CF, Wong BH, Kuk ACY, Ding M, Wenk MR, Guan L, Torta F, Silver DL. Mfsd2a utilizes a flippase mechanism to mediate omega-3 fatty acid lysolipid transport. Proc Natl Acad Sci U S A 2023; 120:e2215290120. [PMID: 36848557 PMCID: PMC10013850 DOI: 10.1073/pnas.2215290120] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 01/27/2023] [Indexed: 03/01/2023] Open
Abstract
Major Facilitator Superfamily Domain containing 2a (Mfsd2a) is a sodium-dependent lysophosphatidylcholine (LPC) transporter expressed at the blood-brain barrier that constitutes the main pathway by which the brain obtains omega-3 fatty acids, such as docosahexanoic acid. Mfsd2a deficiency in humans results in severe microcephaly, underscoring the importance of LPC transport by Mfsd2a for brain development. Biochemical studies and recent cryo-electron microscopy (cryo-EM) structures of Mfsd2a bound to LPC suggest that Mfsd2a transports LPC via an alternating access mechanism between outward-facing and inward-facing conformational states in which the LPC inverts during transport between the outer and inner leaflet of a membrane. However, direct biochemical evidence of flippase activity by Mfsd2a has not been demonstrated and it is not understood how Mfsd2a could invert LPC between the outer and inner leaflet of the membrane in a sodium-dependent manner. Here, we established a unique in vitro assay using recombinant Mfsd2a reconstituted in liposomes that exploits the ability of Mfsd2a to transport lysophosphatidylserine (LPS) coupled with a small molecule LPS binding fluorophore that allowed for monitoring of directional flipping of the LPS headgroup from the outer to the inner liposome membrane. Using this assay, we demonstrate that Mfsd2a flips LPS from the outer to the inner leaflet of a membrane bilayer in a sodium-dependent manner. Furthermore, using cryo-EM structures as guides together with mutagenesis and a cell-based transport assay, we identify amino acid residues important for Mfsd2a activity that likely constitute substrate interaction domains. These studies provide direct biochemical evidence that Mfsd2a functions as a lysolipid flippase.
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Affiliation(s)
- Geok-Lin Chua
- Signature Research Program in Cardiovascular and Metabolic Disorders, Duke-National University of Singapore Medical School, Singapore169857, Singapore
| | - Bryan C. Tan
- Signature Research Program in Cardiovascular and Metabolic Disorders, Duke-National University of Singapore Medical School, Singapore169857, Singapore
| | - Randy Y. J. Loke
- Signature Research Program in Cardiovascular and Metabolic Disorders, Duke-National University of Singapore Medical School, Singapore169857, Singapore
| | - Menglan He
- Signature Research Program in Cardiovascular and Metabolic Disorders, Duke-National University of Singapore Medical School, Singapore169857, Singapore
| | - Cheen-Fei Chin
- Signature Research Program in Cardiovascular and Metabolic Disorders, Duke-National University of Singapore Medical School, Singapore169857, Singapore
| | - Bernice H. Wong
- Signature Research Program in Cardiovascular and Metabolic Disorders, Duke-National University of Singapore Medical School, Singapore169857, Singapore
| | - Alvin C. Y. Kuk
- Signature Research Program in Cardiovascular and Metabolic Disorders, Duke-National University of Singapore Medical School, Singapore169857, Singapore
| | - Mei Ding
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore117456, Singapore
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore117596, Singapore
| | - Markus R. Wenk
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore117456, Singapore
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore117596, Singapore
| | - Lan Guan
- Department of Cell Physiology and Molecular Biophysics, Center for Membrane Protein Research, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX79430
| | - Federico Torta
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore117456, Singapore
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore117596, Singapore
| | - David L. Silver
- Signature Research Program in Cardiovascular and Metabolic Disorders, Duke-National University of Singapore Medical School, Singapore169857, Singapore
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Cauvi DM, Hawisher D, Derunes J, De Maio A. Phosphatidylcholine Liposomes Reprogram Macrophages toward an Inflammatory Phenotype. MEMBRANES 2023; 13:141. [PMID: 36837644 PMCID: PMC9968183 DOI: 10.3390/membranes13020141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/10/2023] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
Phospholipids are the major components of cellular membranes and cell-derived vesicles such as exosomes. They are also key components of artificial lipid nanoparticles, allowing the encapsulation and transport of various biological or chemical cargos. Both artificial and natural vesicles could be captured by cells delivering important information that could modulate cellular functions. However, the potential contribution of phospholipids within vesicles altering cellular physiology has been largely underestimated. Here, we showed that macrophages exposed to liposomes made exclusively with palmitoyl oleoyl phosphatidylcholine (POPC) in vivo resulted in a dramatic alteration of the transcriptome profile. Differential gene expression analysis indicated that the exposure to POPC liposomes resulted in a change in the expression of 1598 genes. Moreover, 146 genes were upregulated, and 69 genes were downregulated by incubation with POPC liposomes in contrast to palmitoyl oleoyl phosphatidylserine (POPS) exposure. Signaling pathway impact analysis revealed that 24 signaling pathways were significantly modulated after exposure to POPC liposomes, including the activation of the NF-κB pathway. Indeed, the expression of several cytokines (TNF-α, IL-6, and IL-10) and chemokines (Cxcl1 and Cxcl2) were increased. These observations were validated by the exposure of macrophages to POPC liposomes in culture conditions. In addition, the proteomic analysis of peritoneal cells exposed to POPC liposomes performed by mass spectrometry revealed that the expression of 107 proteins was downregulated after POPC exposure, whereas the expression of 12 proteins was significantly upregulated by this treatment, including seven proteins involved in the neutrophil degranulation pathway. This observation was confirmed by flow cytometry analysis showing the rapid recruitment of neutrophils into the peritoneal cavity after POPC exposure. Overall, these findings demonstrate that the presence of phospholipids within artificial and natural vesicles could be responsible for changes in the function of target cells.
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Hossain MS, Mawatari S, Fujino T. Plasmalogens inhibit neuroinflammation and promote cognitive function. Brain Res Bull 2023; 192:56-61. [PMID: 36347405 DOI: 10.1016/j.brainresbull.2022.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 11/04/2022] [Accepted: 11/04/2022] [Indexed: 11/06/2022]
Abstract
Neuroinflammation (NF) is defined as the activation of brain glial cells that are found in neurodegenerative diseases including Alzheimer's disease (AD). It has been known that an increase in NF could reduce the memory process in the brain but the key factors, associated with NF, behind the dysregulation of memory remained elusive. We previously reported that the NF and aging processes reduced the special phospholipids, plasmalogens (Pls), in the murine brain by a mechanism dependent on the activation of transcription factors, NF-kB and c-MYC. A similar mechanism has also been found in postmortem human brain tissues with AD pathologies and in the AD model mice. Recent evidence showed that these phospholipids enhanced memory and reduced neuro-inflammation in the murine brain. Pls can stimulate the cellular signaling molecules, ERK and Akt, by activating the membrane-bound G protein-coupled receptors (GPCRs). Therefore, recent findings suggest that plasmalogens could be one of the key phospholipids in the brain to enhance memory and inhibit NF.
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Affiliation(s)
- Md Shamim Hossain
- Institute of Rheological Functions of Food, 2241-1 Kubara, Hisayama-machi, Kasuya-gun, Fukuoka 811-2501, Japan.
| | - Shiro Mawatari
- Institute of Rheological Functions of Food, 2241-1 Kubara, Hisayama-machi, Kasuya-gun, Fukuoka 811-2501, Japan
| | - Takehiko Fujino
- Institute of Rheological Functions of Food, 2241-1 Kubara, Hisayama-machi, Kasuya-gun, Fukuoka 811-2501, Japan
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Forte D, Pellegrino RM, Trabanelli S, Tonetti T, Ricci F, Cenerenti M, Comai G, Tazzari P, Lazzarotto T, Buratta S, Urbanelli L, Narimanfar G, Alabed HBR, Mecucci C, La Manna G, Emiliani C, Jandus C, Ranieri VM, Cavo M, Catani L, Palandri F. Circulating extracellular particles from severe COVID-19 patients show altered profiling and innate lymphoid cell-modulating ability. Front Immunol 2023; 14:1085610. [PMID: 37207201 PMCID: PMC10189636 DOI: 10.3389/fimmu.2023.1085610] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 04/11/2023] [Indexed: 05/21/2023] Open
Abstract
Introduction Extracellular vesicles (EVs) and particles (EPs) represent reliable biomarkers for disease detection. Their role in the inflammatory microenvironment of severe COVID-19 patients is not well determined. Here, we characterized the immunophenotype, the lipidomic cargo and the functional activity of circulating EPs from severe COVID-19 patients (Co-19-EPs) and healthy controls (HC-EPs) correlating the data with the clinical parameters including the partial pressure of oxygen to fraction of inspired oxygen ratio (PaO2/FiO2) and the sequential organ failure assessment (SOFA) score. Methods Peripheral blood (PB) was collected from COVID-19 patients (n=10) and HC (n=10). EPs were purified from platelet-poor plasma by size exclusion chromatography (SEC) and ultrafiltration. Plasma cytokines and EPs were characterized by multiplex bead-based assay. Quantitative lipidomic profiling of EPs was performed by liquid chromatography/mass spectrometry combined with quadrupole time-of-flight (LC/MS Q-TOF). Innate lymphoid cells (ILC) were characterized by flow cytometry after co-cultures with HC-EPs or Co-19-EPs. Results We observed that EPs from severe COVID-19 patients: 1) display an altered surface signature as assessed by multiplex protein analysis; 2) are characterized by distinct lipidomic profiling; 3) show correlations between lipidomic profiling and disease aggressiveness scores; 4) fail to dampen type 2 innate lymphoid cells (ILC2) cytokine secretion. As a consequence, ILC2 from severe COVID-19 patients show a more activated phenotype due to the presence of Co-19-EPs. Discussion In summary, these data highlight that abnormal circulating EPs promote ILC2-driven inflammatory signals in severe COVID-19 patients and support further exploration to unravel the role of EPs (and EVs) in COVID-19 pathogenesis.
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Affiliation(s)
- Dorian Forte
- Department of Medical and Surgical Sciences (DIMEC), Institute of Hematology ‘Seràgnoli’, University of Bologna, Bologna, Italy
| | - Roberto Maria Pellegrino
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Perugia, Italy
| | - Sara Trabanelli
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Ludwig Institute for Cancer Research, Lausanne Branch, Lausanne, Switzerland
| | - Tommaso Tonetti
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
- Anesthesia and Intensive Care Medicine, IRCCS Azienda Ospealiero-Universitaria di Bologna, Bologna, Italy
| | - Francesca Ricci
- Immunohematology and blood bank, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Mara Cenerenti
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Ludwig Institute for Cancer Research, Lausanne Branch, Lausanne, Switzerland
| | - Giorgia Comai
- Nephrology, Dialysis and Renal Transplant Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Pierluigi Tazzari
- Immunohematology and blood bank, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Tiziana Lazzarotto
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
- Microbiology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Sandra Buratta
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Perugia, Italy
| | - Lorena Urbanelli
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Perugia, Italy
| | - Ghazal Narimanfar
- Department of Medical and Surgical Sciences (DIMEC), Institute of Hematology ‘Seràgnoli’, University of Bologna, Bologna, Italy
| | - Husam B. R. Alabed
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Perugia, Italy
| | - Cristina Mecucci
- Department of Medicine and Surgery, Center for Hemato-Oncology Research (C.R.E.O.), University of Perugia, Perugia, Italy
| | - Gaetano La Manna
- Nephrology, Dialysis and Renal Transplant Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Carla Emiliani
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Perugia, Italy
| | - Camilla Jandus
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Ludwig Institute for Cancer Research, Lausanne Branch, Lausanne, Switzerland
| | - Vito Marco Ranieri
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
- Anesthesia and Intensive Care Medicine, IRCCS Azienda Ospealiero-Universitaria di Bologna, Bologna, Italy
| | - Michele Cavo
- Department of Medical and Surgical Sciences (DIMEC), Institute of Hematology ‘Seràgnoli’, University of Bologna, Bologna, Italy
- Istituto di Ematologia “Seràgnoli”, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Lucia Catani
- Department of Medical and Surgical Sciences (DIMEC), Institute of Hematology ‘Seràgnoli’, University of Bologna, Bologna, Italy
- Istituto di Ematologia “Seràgnoli”, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
- *Correspondence: Lucia Catani,
| | - Francesca Palandri
- Istituto di Ematologia “Seràgnoli”, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
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Fahrmann JF, Saini NY, Chia-Chi C, Irajizad E, Strati P, Nair R, Fayad LE, Ahmed S, Lee HJ, Iyer S, Steiner R, Vykoukal J, Wu R, Dennison JB, Nastoupil L, Jain P, Wang M, Green M, Westin J, Blumenberg V, Davila M, Champlin R, Shpall EJ, Kebriaei P, Flowers CR, Jain M, Jenq R, Stein-Thoeringer CK, Subklewe M, Neelapu SS, Hanash S. A polyamine-centric, blood-based metabolite panel predictive of poor response to CAR-T cell therapy in large B cell lymphoma. Cell Rep Med 2022; 3:100720. [PMID: 36384092 PMCID: PMC9729795 DOI: 10.1016/j.xcrm.2022.100720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 06/06/2022] [Accepted: 07/20/2022] [Indexed: 11/17/2022]
Abstract
Anti-CD19 chimeric antigen receptor (CAR) T cell therapy for relapsed or refractory (r/r) large B cell lymphoma (LBCL) results in durable response in only a subset of patients. MYC overexpression in LBCL tumors is associated with poor response to treatment. We tested whether an MYC-driven polyamine signature, as a liquid biopsy, is predictive of response to anti-CD19 CAR-T therapy in patients with r/r LBCL. Elevated plasma acetylated polyamines were associated with non-durable response. Concordantly, increased expression of spermidine synthase, a key enzyme that regulates levels of acetylated spermidine, was prognostic for survival in r/r LBCL. A broad metabolite screen identified additional markers that resulted in a 6-marker panel (6MetP) consisting of acetylspermidine, diacetylspermidine, and lysophospholipids, which was validated in an independent set from another institution as predictive of non-durable response to CAR-T therapy. A polyamine centric metabolomics liquid biopsy panel has predictive value for response to CAR-T therapy in r/r LBCL.
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Affiliation(s)
- Johannes F. Fahrmann
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, 6767 Bertner Avenue, Houston, TX 77030, USA
| | - Neeraj Y. Saini
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA,Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Chang Chia-Chi
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Ehsan Irajizad
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, 6767 Bertner Avenue, Houston, TX 77030, USA,Department of Biostatistics, The University of Texas MD Anderson Cancer Center, 6767 Bertner Avenue, Houston, TX 77030, USA
| | - Paolo Strati
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Ranjit Nair
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Luis E. Fayad
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Sairah Ahmed
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Hun Ju Lee
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Swaminathan Iyer
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Raphael Steiner
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Jody Vykoukal
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, 6767 Bertner Avenue, Houston, TX 77030, USA
| | - Ranran Wu
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, 6767 Bertner Avenue, Houston, TX 77030, USA
| | - Jennifer B. Dennison
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, 6767 Bertner Avenue, Houston, TX 77030, USA
| | - Loretta Nastoupil
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Preetesh Jain
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Michael Wang
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Michael Green
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Jason Westin
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Viktoria Blumenberg
- Department of Medicine III, University Hospital, LMU Munich, 81377 Munich, Germany,National Center for Tumor Diseases (NCT), Neuenheimer Feld 460, 69120 Heidelberg, Germany
| | - Marco Davila
- Department of Blood and Marrow Transplant and Cellular Therapy, Moffitt Cancer Center, 12902 USF Magnolia Drive, Tampa, FL 33612, USA
| | - Richard Champlin
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Elizabeth J. Shpall
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Partow Kebriaei
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Christopher R. Flowers
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Michael Jain
- Department of Blood and Marrow Transplant and Cellular Therapy, Moffitt Cancer Center, 12902 USF Magnolia Drive, Tampa, FL 33612, USA
| | - Robert Jenq
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Christoph K. Stein-Thoeringer
- National Center for Tumor Diseases (NCT), Neuenheimer Feld 460, 69120 Heidelberg, Germany,German Cancer Research Center (Deutsches Krebsforschungszentrum, DKFZ), Heidelberg, Germany
| | - Marion Subklewe
- Department of Medicine III, University Hospital, LMU Munich, 81377 Munich, Germany,German Cancer Research Center (Deutsches Krebsforschungszentrum, DKFZ), Heidelberg, Germany,Laboratory for Translational Cancer Immunology, Gene Center of the LMU Munich, Munich, Germany,Corresponding author
| | - Sattva S. Neelapu
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA,Corresponding author
| | - Sam Hanash
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, 6767 Bertner Avenue, Houston, TX 77030, USA,Corresponding author
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10
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Wong BH, Mei D, Chua GL, Galam DL, Wenk MR, Torta F, Silver DL. The lipid transporter Mfsd2a maintains pulmonary surfactant homeostasis. J Biol Chem 2022; 298:101709. [PMID: 35150739 PMCID: PMC8914330 DOI: 10.1016/j.jbc.2022.101709] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 02/02/2022] [Accepted: 02/03/2022] [Indexed: 11/18/2022] Open
Abstract
Pulmonary surfactant is a lipoprotein complex essential for lung function, and insufficiency or altered surfactant composition is associated with major lung diseases, such as acute respiratory distress syndromes, idiopathic pulmonary fibrosis, and chronic obstructive pulmonary disease. Pulmonary surfactant is primarily composed of phosphatidylcholine (PC) in complex with specialized surfactant proteins and secreted by alveolar type 2 (AT2) cells. Surfactant homeostasis on the alveolar surface is balanced by the rates of synthesis and secretion with reuptake and recycling by AT2 cells, with some degradation by pulmonary macrophages and loss up the bronchial tree. However, whether phospholipid (PL) transporters exist in AT2 cells to mediate reuptake of surfactant PL remains to be identified. Here, we demonstrate that major facilitator superfamily domain containing 2a (Mfsd2a), a sodium-dependent lysophosphatidylcholine (LPC) transporter, is expressed at the apical surface of AT2 cells. A mouse model with inducible AT2 cell–specific deficiency of Mfsd2a exhibited AT2 cell hypertrophy with reduced total surfactant PL levels because of reductions in the most abundant surfactants, PC containing dipalmitic acid, and PC species containing the omega-3 fatty acid docosahexaenoic acid. These changes in surfactant levels and composition were mirrored by similar changes in the AT2 cell lipidome. Mechanistically, direct tracheal instillation of fluorescent LPC and PC probes indicated that Mfsd2a mediates the uptake of LPC generated by pulmonary phospholipase activity in the alveolar space. These studies reveal that Mfsd2a-mediated LPC uptake is quantitatively important in maintaining surfactant homeostasis and identify this lipid transporter as a physiological component of surfactant recycling.
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Affiliation(s)
- Bernice H Wong
- Signature Research Program in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Singapore, Singapore
| | - Ding Mei
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore, Singapore; Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Geok Lin Chua
- Signature Research Program in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Singapore, Singapore
| | - Dwight L Galam
- Signature Research Program in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Singapore, Singapore
| | - Markus R Wenk
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore, Singapore; Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Federico Torta
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore, Singapore; Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - David L Silver
- Signature Research Program in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Singapore, Singapore.
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11
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Lin ZZ, Li ZQ, Li JJ, Yu CL, Yang CW, Ran JS, Yin LQ, Zhang DH, Zhang GF, Liu YP. Mfsd2a Promotes the Proliferation, Migration, Differentiation and Adipogenesis of Chicken Intramuscular Preadipocytes. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2022. [DOI: 10.1590/1806-9061-2021-1547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- ZZ Lin
- Sichuan Agricultural University, China
| | - ZQ Li
- Sichuan Agricultural University, China
| | - JJ Li
- Sichuan Agricultural University, China
| | - CL Yu
- Sichuan Animal Science Academy, China
| | - CW Yang
- Sichuan Animal Science Academy, China
| | - JS Ran
- Sichuan Agricultural University, China
| | - LQ Yin
- Sichuan Agricultural University, China
| | - DH Zhang
- Sichuan Agricultural University, China
| | - GF Zhang
- Sichuan Agricultural University, China
| | - YP Liu
- Sichuan Agricultural University, China
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12
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Trusov NV, Apryatin SA, Shipelin VA, Shumakova AA, Gmoshinski IV, Nikityuk DB, Tutelyan VA. Effect of Administration of Carnitine, Resveratrol, and Aromatic Amino Acids with High-Fat-High-Fructose Diet on Gene Expression in Liver of Rats: Full Transcriptome Analysis. RUSS J GENET+ 2021. [DOI: 10.1134/s1022795421100136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Huang B, Li X. The Role of Mfsd2a in Nervous System Diseases. Front Neurosci 2021; 15:730534. [PMID: 34566571 PMCID: PMC8461068 DOI: 10.3389/fnins.2021.730534] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 08/26/2021] [Indexed: 12/16/2022] Open
Abstract
Major facilitator superfamily (MFS) is the maximum and most diversified membrane transporter, acting as uniporters, symporters and antiporters. MFS is considered to have a good development potential in the transport of drugs for the treatment of brain diseases. The major facilitator superfamily domain containing protein 2a (Mfsd2a) is a member of MFS. Mfsd2a-knockout mice have shown a marked decrease of docosahexaenoic acid (DHA) level in brain, exhibiting neuron loss, microcephaly and cognitive deficits, as DHA acts essentially in brain growth and integrity. Mfsd2a has attracted more and more attention in the study of nervous system diseases because of its critical role in maintaining the integrity of the blood-brain barrier (BBB) and transporting DHA, including inhibiting cell transport in central nervous system endothelial cells, alleviating BBB injury, avoiding BBB injury in cerebral hemorrhage model, acting as a carrier etc. Up to now, the clinical research of Mfsd2a in nervous system diseases is rare. This article reviewed the current research progress of Mfsd2a in nervous system diseases. It summarized the physiological functions of Mfsd2a in the occurrence and development of intracranial hemorrhage (ICH), Alzheimer's disease (AD), sepsis-associated encephalopathy (SAE), autosomal recessive primary microcephaly (MCPH) and intracranial tumor, aiming to provide ideas for the basic research and clinical application of Mfsd2a.
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Affiliation(s)
- Bei Huang
- Operational Management Office, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Xihong Li
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
- Emergency Department, West China Second University Hospital, Sichuan University, Chengdu, China
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14
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Liu T, Wang X, Guo F, Sun X, Yuan K, Wang Q, Lan C. Lysophosphatidylcholine induces apoptosis and inflammatory damage in brain microvascular endothelial cells via GPR4-mediated NLRP3 inflammasome activation. Toxicol In Vitro 2021; 77:105227. [PMID: 34293432 DOI: 10.1016/j.tiv.2021.105227] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 06/25/2021] [Accepted: 07/15/2021] [Indexed: 01/14/2023]
Abstract
Lysophosphatidylcholine (LPC), as the main active component of oxidized low-density lipoproteins (ox-LDLs), has significant effects in cerebrovascular disease. However, the complex mechanism by which LPC functions in brain microvascular endothelial cells (BMECs) is not clearly understood. In this study, BMECs were transfected with G protein-coupled receptor 4 (GPR4) siRNA or an NLRP3-overexpression plasmid, and GPR4 expression was identified by RT-qPCR and western blotting; IL-1β, IL-18, and IL-33 levels were evaluated by ELISA. Apoptosis was monitored by flow cytometry and Hoechst staining, while Caspase 3, ASC, NLRP3, and GPR4 protein expression were examined by western blotting. Our results showed that LPC significantly increased the levels of inflammatory cytokines (IL-1β, IL-18, and IL-33) and markedly induced apoptosis and NLRP3 inflammasome activation in BMECs. Moreover, LPC notably upregulated GPR4 in BMECs, and knockdown of GPR4 significantly attenuated the effects of LPC in BMECs. Above all, we also proved that LPC induced apoptosis and inflammatory injury in BMECs by causing GPR4 to activate NLRP3 inflammasomes. Therefore, GPR4-mediated activation of NLRP3 inflammasomes might be the underlying mechanism by which LPC promotes the progression of cerebrovascular disease. In summary we found that LPC is an important pathogenic factor in cerebrovascular disease, and can induce GPR4 to active NLRP3 inflammasomes.
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Affiliation(s)
- Tao Liu
- Department of Neurology, University of Chinese Academy of Sciences Shenzhen Hospital (Guang ming), No. 39 Huaxia Road, Guangming District, Shenzhen 518107, China
| | - Xuegang Wang
- Department of Hepatology, The People's Hospital of Bao an, No. 118, Longjing Second Road, Baoan District, Shenzhen 518107, China
| | - Feng Guo
- Department of Neurology, University of Chinese Academy of Sciences Shenzhen Hospital (Guang ming), No. 39 Huaxia Road, Guangming District, Shenzhen 518107, China
| | - Xiaobo Sun
- Department of Laboratory Diagnostics, Changhai Hospital, No. 168 Changhai Road, Yangpu District, Shanghai 200433, China
| | - Kunxiong Yuan
- Department of Neurology, University of Chinese Academy of Sciences Shenzhen Hospital (Guang ming), No. 39 Huaxia Road, Guangming District, Shenzhen 518107, China
| | - Qingyong Wang
- Department of Neurology, University of Chinese Academy of Sciences Shenzhen Hospital (Guang ming), No. 39 Huaxia Road, Guangming District, Shenzhen 518107, China
| | - Chunwei Lan
- Department of Neurology, University of Chinese Academy of Sciences Shenzhen Hospital (Guang ming), No. 39 Huaxia Road, Guangming District, Shenzhen 518107, China.
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15
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Benke PI, Burla B, Ekroos K, Wenk MR, Torta F. Impact of ion suppression by sample cap liners in lipidomics. Anal Chim Acta 2020; 1137:136-142. [PMID: 33153597 DOI: 10.1016/j.aca.2020.09.055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 09/14/2020] [Accepted: 09/25/2020] [Indexed: 11/16/2022]
Abstract
Contamination from the polymeric material released by vial caps used for sample introduction in liquid chromatography can significantly affect the signal of the analyte of interest. In particular, repeated injections from the same sample vial can enhance this suppressing effect. Multiple injections of the same sample are often used in metabolomics and lipidomics during routine analyses. Here we demonstrate how the presence of contaminant polymers, originating from the vial closures, significantly influences the estimation of the relative amount of endogenous lipids in human plasma. Furthermore, this can negatively impact other operations in mass spectrometric analysis, such as instrument equilibration and tuning or the common use of technical replicates to improve confidence in data interpretation. Our observations provide critical information on how to improve future analyses through the use of appropriate vial caps, solvents, chromatographic separations and equipment.
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Affiliation(s)
- Peter I Benke
- Singapore Lipidomics Incubator, Department of Biochemistry, Life Sciences Institute and Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Bo Burla
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore
| | - Kim Ekroos
- Lipidomics Consulting Ltd, Irisviksvägen 31D, 02230, Esbo, Finland
| | - Markus R Wenk
- Singapore Lipidomics Incubator, Department of Biochemistry, Life Sciences Institute and Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Federico Torta
- Singapore Lipidomics Incubator, Department of Biochemistry, Life Sciences Institute and Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
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16
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Razmara E, Azimi H, Tavasoli AR, Fallahi E, Sheida SV, Eidi M, Bitaraf A, Farjami Z, Daneshmand MA, Garshasbi M. Novel neuroclinical findings of autosomal recessive primary microcephaly 15 in a consanguineous Iranian family. Eur J Med Genet 2020; 63:104096. [PMID: 33186761 DOI: 10.1016/j.ejmg.2020.104096] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 11/04/2020] [Accepted: 11/04/2020] [Indexed: 12/31/2022]
Abstract
Major facilitator superfamily domain-containing 2A (MFSD2A) is required for brain uptake of Docosahexaenoic acid and Lysophosphatidylcholine, both are essential for the normal neural development and function. Mutations in MFSD2A dysregulate the activity of this transporter in brain endothelial cells and can lead to microcephaly. In this study, we describe an 11-year-old male who is affected by autosomal recessive primary microcephaly 15. This patient also shows severe intellectual disability, recurrent respiratory and renal infections, low birth weight, and developmental delay. After doing clinical and neuroimaging evaluations, due to heterogeneity of neurogenetic disorders, no narrow clinical diagnosis was possible, therefore, we utilized targeted-exome sequencing to identify any causative genetic factors. This revealed a homozygous in-frame deletion (NM_001136493.1: c.241_243del; p.(Val81del)) in the MFSD2A gene as the most likely disease-susceptibility variant which was confirmed by Sanger sequencing. Neuroimaging revealed lateral ventricular asymmetry, corpus callosum hypoplasia, type B of cisterna magna, and widening of Sylvian fissures. All of these novel phenotypes are associated with autosomal recessive primary microcephaly-15 (MCPH15). According to the genotype-phenotype data, p.(Val81del) can be considered a likely pathogenic variant leading to non-lethal microcephaly. However, further cumulative data and molecular approaches are required to accurately identify genotype-phenotype correlations in MFSD2A.
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Affiliation(s)
- Ehsan Razmara
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Homeyra Azimi
- Pediatrician-official Genetic Counselor, Dr. Azimi Genetic Counseling Center, Arak, Iran
| | - Ali Reza Tavasoli
- Myelin Disorders Clinic, Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran
| | - Elnaz Fallahi
- Department of Biology, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Sadaf Valeh Sheida
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Milad Eidi
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Amirreza Bitaraf
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Zahra Farjami
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Masoud Garshasbi
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
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17
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Knuplez E, Marsche G. An Updated Review of Pro- and Anti-Inflammatory Properties of Plasma Lysophosphatidylcholines in the Vascular System. Int J Mol Sci 2020; 21:E4501. [PMID: 32599910 PMCID: PMC7350010 DOI: 10.3390/ijms21124501] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/19/2020] [Accepted: 06/23/2020] [Indexed: 12/14/2022] Open
Abstract
Lysophosphatidylcholines are a group of bioactive lipids heavily investigated in the context of inflammation and atherosclerosis development. While present in plasma during physiological conditions, their concentration can drastically increase in certain inflammatory states. Lysophosphatidylcholines are widely regarded as potent pro-inflammatory and deleterious mediators, but an increasing number of more recent studies show multiple beneficial properties under various pathological conditions. Many of the discrepancies in the published studies are due to the investigation of different species or mixtures of lysophatidylcholines and the use of supra-physiological concentrations in the absence of serum or other carrier proteins. Furthermore, interpretation of the results is complicated by the rapid metabolism of lysophosphatidylcholine (LPC) in cells and tissues to pro-inflammatory lysophosphatidic acid. Interestingly, most of the recent studies, in contrast to older studies, found lower LPC plasma levels associated with unfavorable disease outcomes. Being the most abundant lysophospholipid in plasma, it is of utmost importance to understand its physiological functions and shed light on the discordant literature connected to its research. LPCs should be recognized as important homeostatic mediators involved in all stages of vascular inflammation. In this review, we want to point out potential pro- and anti-inflammatory activities of lysophospholipids in the vascular system and highlight recent discoveries about the effect of lysophosphatidylcholines on immune cells at the endothelial vascular interface. We will also look at their potential clinical application as biomarkers.
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Affiliation(s)
- Eva Knuplez
- Division of Pharmacology, Otto Loewi Research Center, Medical University of Graz, 8010 Graz, Austria
| | - Gunther Marsche
- Division of Pharmacology, Otto Loewi Research Center, Medical University of Graz, 8010 Graz, Austria
- BioTechMed-Graz, 8010 Graz, Austria
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18
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Liu P, Zhu W, Chen C, Yan B, Zhu L, Chen X, Peng C. The mechanisms of lysophosphatidylcholine in the development of diseases. Life Sci 2020; 247:117443. [DOI: 10.1016/j.lfs.2020.117443] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 02/11/2020] [Accepted: 02/17/2020] [Indexed: 02/07/2023]
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19
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Wong BH, Silver DL. Mfsd2a: A Physiologically Important Lysolipid Transporter in the Brain and Eye. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1276:223-234. [PMID: 32705603 DOI: 10.1007/978-981-15-6082-8_14] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Lipids and essential fatty acids are required for normal brain development and continued photoreceptor membrane biogenesis for the maintenance of vision. The blood-brain barrier and blood-eye barriers prohibit the free diffusion of solutes into the brain and eye so that transporter-mediated uptake predominates at these barriers. The major facilitator superfamily of transporters constitutes one of the largest families of facilitative transporters across all domains of life. A unique family member, major facilitator superfamily domain containing 2a (Mfsd2a) is a lysophosphatidylcholine (LPC) transporter expressed at the blood-brain and blood-retinal barriers and demonstrated to be the major pathway for brain and eye accretion of docosahexaenoic acid (DHA) as an LPC. In addition to LPC-DHA, Mfsd2a can transport other LPCs containing mono- and polyunsaturated fatty acids. Mfsd2a deficiency in mouse and humans results in severe microcephaly, underscoring the importance of LPC transport in brain development. Beyond its role in brain development, LPC-DHA uptake in the brain and eye negatively regulates de novo lipogenesis. This review focuses on the current understanding of the physiological roles of Mfsd2a in the brain and eye and the proposed transport mechanism of Mfsd2a.
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Affiliation(s)
- Bernice H Wong
- Signature Research Program in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Singapore, Singapore
| | - David L Silver
- Signature Research Program in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Singapore, Singapore.
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20
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Sánchez-Campillo M, Ruiz-Palacios M, Ruiz-Alcaraz AJ, Prieto-Sánchez MT, Blanco-Carnero JE, Zornoza M, Ruiz-Pastor MJ, Demmelmair H, Sánchez-Solís M, Koletzko B, Larqué E. Child Head Circumference and Placental MFSD2a Expression Are Associated to the Level of MFSD2a in Maternal Blood During Pregnancy. Front Endocrinol (Lausanne) 2020; 11:38. [PMID: 32117064 PMCID: PMC7012934 DOI: 10.3389/fendo.2020.00038] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 01/20/2020] [Indexed: 12/14/2022] Open
Abstract
Gestational diabetes mellitus (GDM) is a world-wide health challenge, which prevalence is expected to increase in parallel to the epidemic of obesity. Children born from GDM mothers have lower levels of docosahexaenoic acid (DHA) in cord blood, which might influence their neurodevelopment. Recently, the membrane transporter Major Family Super Domain 2a (MFSD2a) was associated with the selective transportation of DHA as lysophospholipids. The expression of the DHA membrane transporter MFSD2a is lower in GDM placentas, which could affect materno-fetal DHA transport. Humans with homozygous inactivating mutations in the MFSD2a gene present severe microcephaly and intellectual impairments. Herein, we intended to identify early blood biomarkers that may be of use during pregnancy to monitor the offspring development and the adequate nutritional interventions, such as nutritional supplementation, that may be selected to improve it. We evaluated MFSD2a expression in maternal blood at the third trimester of pregnancy, and its potential relationship with the expression of placental MFSD2a at delivery and child outcomes. Three groups of pregnant women were recruited: 25 controls, 23 GDM with dietary treatment, and 20 GDM with insulin treatment. Maternal and neonatal anthropometric and biochemical parameters were evaluated. MFSD2a was analyzed in placenta, blood and serum. MFSD2a protein expression in maternal blood was significantly lower in GDM groups and correlated with placental MFSD2a and Z-score neonatal head circumference during the first 6 months of life. The cord/maternal serum ratio of DHA, a solid indicator of materno-fetal DHA transport, was reduced in GDM groups and correlated with MFSD2a in maternal blood at the third trimester and in placenta at delivery. This indicates that altered MFSD2a levels in maternal blood during pregnancy might influence placental nutrient transport and fetal neurodevelopment. Furthermore, MFSD2a levels in maternal blood on the third trimester were inversely correlated to DHA in maternal serum lyso-PL. Thus, the level of MFSD2a in maternal blood could be used as a potential biomarker for the early detection of disturbances of MFSD2a expression during pregnancy and the subsequent consequences for the neurodevelopment of the child, as well as it may help to choose the optimal treatment approach for the affected subjects.
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Affiliation(s)
- María Sánchez-Campillo
- Department of Physiology, Faculty of Biology, Regional Campus of International Excellence Campus Mare Nostrum, University of Murcia, Murcia, Spain
| | - María Ruiz-Palacios
- Department of Physiology, Faculty of Biology, Regional Campus of International Excellence Campus Mare Nostrum, University of Murcia, Murcia, Spain
| | - Antonio J. Ruiz-Alcaraz
- Department of Biochemistry, Molecular Biology B and Immunology, Faculty of Medicine, Regional Campus of International Excellence Campus Mare Nostrum and Biomedical Research Institute of Murcia (IMIB), University of Murcia, Murcia, Spain
| | | | | | - Matilde Zornoza
- Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
| | - María José Ruiz-Pastor
- Department of Physiology, Faculty of Biology, Regional Campus of International Excellence Campus Mare Nostrum, University of Murcia, Murcia, Spain
| | - Hans Demmelmair
- Ludwig-Maximilians-University Munich, Dr. von Hauner Children's Hospital, München, Germany
| | | | - Berthold Koletzko
- Ludwig-Maximilians-University Munich, Dr. von Hauner Children's Hospital, München, Germany
| | - Elvira Larqué
- Department of Physiology, Faculty of Biology, Regional Campus of International Excellence Campus Mare Nostrum, University of Murcia, Murcia, Spain
- *Correspondence: Elvira Larqué
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