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Zhong Z, Chen Y, Ruan X, Xie H, Wang B, Tan S, Qin X. Lipidomics analysis of bone marrow in a mouse model of postmenopausal osteoporosis. J Pharm Biomed Anal 2024; 246:116212. [PMID: 38735209 DOI: 10.1016/j.jpba.2024.116212] [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] [Received: 12/11/2023] [Revised: 05/04/2024] [Accepted: 05/06/2024] [Indexed: 05/14/2024]
Abstract
Postmenopausal osteoporosis (PMOP) is a major public health problem worldwide, afflicting many postmenopausal women. Although many studies have focused on the biological role of individual lipids in osteoporosis, no studies have systematically elucidated the lipid profile of osteoporosis. In this study, liquid chromatography-tandem mass spectrometry (LC-MS/MS) technology based on multiple reaction monitoring (MRM) method was used to compare the levels of lipid molecules in bone marrow cells of osteoporotic mice (OVX) group and sham-operation (Sham) group. Principal component analysis (PCA) was used for multivariate statistics. Differential lipids were obtained by bar graph, heatmap and volcano map. A total of 400 lipid molecules were identified. A total of 199 lipid molecules were identified to be associated with PMOP, including 6 phospholipids and 3 sphingolipids. These differential lipid molecules provide a systematic lipid profile for osteoporosis, which helps to discover new candidate osteoporosis biomarkers, and their changes at the molecular level can be used as new targets for diagnosis or prevention.
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Affiliation(s)
- Ziqing Zhong
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Yongling Chen
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Xuelian Ruan
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Huilin Xie
- Department of Orthopaedic Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510030, China
| | - Binbin Wang
- Department of Anesthesiology, The Second Affiliated Hospital of Guangxi Medical University, Nanning 530007, China
| | - Shaolin Tan
- Department of Orthopaedics, The Second Affiliated Hospital of Guangxi Medical University, Nanning 530007, China.
| | - Xue Qin
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China.
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2
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Zhang W, Tian Z, Qi X, Chen P, Yang Q, Guan Q, Ye J, Yu C. Switching from high-fat diet to normal diet ameliorate BTB integrity and improve fertility potential in obese male mice. Sci Rep 2023; 13:14152. [PMID: 37644200 PMCID: PMC10465505 DOI: 10.1038/s41598-023-41291-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 08/24/2023] [Indexed: 08/31/2023] Open
Abstract
Obesity is a prominent risk factor for male infertility, and a high-fat diet is an important cause of obesity. Therefore, diet control can reduce body weight and regulate blood glucose and lipids, but it remains unclear whether it can improve male fertility and its mechanism. This study explores the effects of switching from a high-fat diet (HFD) to a normal diet (ND) on the fertility potential of obese male mice and its related mechanisms. In our study, male mice were separated into three groups: normal diet group (NN), continuous high-fat diet group (HH), and return to normal diet group (HN). The reproductive potential of mice was tested through cohabitation. Enzymatic methods and ELISA assays were used to measure metabolic indicators, follicle-stimulating hormone (FSH) levels and intratesticular testosterone levels. Transmission electron microscopy and immunofluorescence with biotin tracers assessed the integrity of the blood-testis barrier (BTB). Malondialdehyde (MDA), superoxide dismutase (SOD), and reactive oxygen species (ROS) were inspected for the assessment of oxidative stress. The expression and localization of BTB-related proteins were detected through the immunoblot and immunofluorescence. The mice in the high-fat diet group indicated increased body weight and epididymal fat weight, elevated serum TC, HDL, LDL, and glucose, decreased serum FSH, and dramatic lipid deposition in the testicular interstitium. Analysis of fertility potential revealed that the fertility rate of female mice and the number of pups per litter in the HH group were significantly reduced. After the fat intake was controlled by switching to a normal diet, body weight and epididymal fat weight were significantly reduced, serum glucose and lipid levels were lowered, serum FSH level was elevated and the deposition of interstitial lipids in the testicles was also decreased. Most significantly, the number of offspring of male mice returning to a normal diet was significantly increased. Following further mechanistic analysis, the mice in the sustained high-fat diet group had disrupted testicular BTB integrity, elevated levels of oxidative stress, and abnormal expression of BTB-related proteins, whereas the restoration of the normal diet significantly ameliorated the above indicators in the mice. Our study confirms diet control by switching from a high-fat diet to a normal diet can effectively reduce body weight, ameliorate testicular lipotoxicity and BTB integrity in male mice, and improve fertility potential, providing an effective treatment option for obese male infertility.
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Affiliation(s)
- Wenjing Zhang
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong Provincial Hospital, Shandong University, Jinan, 250021, Shandong, China
- Key Laboratory of Endocrine Glucose and Lipids Metabolism and Brain Aging (Shandong First Medical University), Ministry of Education, Shandong, China
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan, 250021, Shandong, China
- Shandong Institute of Endocrine and Metabolic Diseases, Jinan, 250021, Shandong, China
- Shandong Engineering Laboratory of Prevention and Control for Endocrine and Metabolic Diseases, Jinan, 250021, Shandong, China
| | - Zhenhua Tian
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong Provincial Hospital, Shandong University, Jinan, 250021, Shandong, China
- Key Laboratory of Endocrine Glucose and Lipids Metabolism and Brain Aging (Shandong First Medical University), Ministry of Education, Shandong, China
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan, 250021, Shandong, China
- Shandong Institute of Endocrine and Metabolic Diseases, Jinan, 250021, Shandong, China
- Shandong Engineering Laboratory of Prevention and Control for Endocrine and Metabolic Diseases, Jinan, 250021, Shandong, China
| | - Xiangyu Qi
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong Provincial Hospital, Shandong University, Jinan, 250021, Shandong, China
- Key Laboratory of Endocrine Glucose and Lipids Metabolism and Brain Aging (Shandong First Medical University), Ministry of Education, Shandong, China
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan, 250021, Shandong, China
- Shandong Institute of Endocrine and Metabolic Diseases, Jinan, 250021, Shandong, China
| | - Pengcheng Chen
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong Provincial Hospital, Shandong University, Jinan, 250021, Shandong, China
- Key Laboratory of Endocrine Glucose and Lipids Metabolism and Brain Aging (Shandong First Medical University), Ministry of Education, Shandong, China
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan, 250021, Shandong, China
- Shandong Institute of Endocrine and Metabolic Diseases, Jinan, 250021, Shandong, China
- Shandong Engineering Laboratory of Prevention and Control for Endocrine and Metabolic Diseases, Jinan, 250021, Shandong, China
| | - Qian Yang
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong Provincial Hospital, Shandong University, Jinan, 250021, Shandong, China
- Key Laboratory of Endocrine Glucose and Lipids Metabolism and Brain Aging (Shandong First Medical University), Ministry of Education, Shandong, China
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan, 250021, Shandong, China
- Shandong Institute of Endocrine and Metabolic Diseases, Jinan, 250021, Shandong, China
- Shandong Engineering Laboratory of Prevention and Control for Endocrine and Metabolic Diseases, Jinan, 250021, Shandong, China
| | - Qingbo Guan
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong Provincial Hospital, Shandong University, Jinan, 250021, Shandong, China
- Key Laboratory of Endocrine Glucose and Lipids Metabolism and Brain Aging (Shandong First Medical University), Ministry of Education, Shandong, China
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan, 250021, Shandong, China
- Shandong Institute of Endocrine and Metabolic Diseases, Jinan, 250021, Shandong, China
- Shandong Engineering Laboratory of Prevention and Control for Endocrine and Metabolic Diseases, Jinan, 250021, Shandong, China
| | - Jifeng Ye
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong Provincial Hospital, Shandong University, Jinan, 250021, Shandong, China.
- Key Laboratory of Endocrine Glucose and Lipids Metabolism and Brain Aging (Shandong First Medical University), Ministry of Education, Shandong, China.
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan, 250021, Shandong, China.
- Shandong Institute of Endocrine and Metabolic Diseases, Jinan, 250021, Shandong, China.
- Shandong Engineering Laboratory of Prevention and Control for Endocrine and Metabolic Diseases, Jinan, 250021, Shandong, China.
- Department of Endocrinology and Metabolism, The Second People's Hospital of Liaocheng, Shandong, 252601, China.
| | - Chunxiao Yu
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong Provincial Hospital, Shandong University, Jinan, 250021, Shandong, China.
- Key Laboratory of Endocrine Glucose and Lipids Metabolism and Brain Aging (Shandong First Medical University), Ministry of Education, Shandong, China.
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan, 250021, Shandong, China.
- Shandong Institute of Endocrine and Metabolic Diseases, Jinan, 250021, Shandong, China.
- Shandong Engineering Laboratory of Prevention and Control for Endocrine and Metabolic Diseases, Jinan, 250021, Shandong, China.
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3
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Kipp ZA, Martinez GJ, Bates EA, Maharramov AB, Flight RM, Moseley HNB, Morris AJ, Stec DE, Hinds TD. Bilirubin Nanoparticle Treatment in Obese Mice Inhibits Hepatic Ceramide Production and Remodels Liver Fat Content. Metabolites 2023; 13:215. [PMID: 36837834 PMCID: PMC9965094 DOI: 10.3390/metabo13020215] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/21/2023] [Accepted: 01/30/2023] [Indexed: 02/04/2023] Open
Abstract
Studies have indicated that increasing plasma bilirubin levels might be useful for preventing and treating hepatic lipid accumulation that occurs with metabolic diseases such as obesity and diabetes. We have previously demonstrated that mice with hyperbilirubinemia had significantly less lipid accumulation in a diet-induced non-alcoholic fatty liver disease (NAFLD) model. However, bilirubin's effects on individual lipid species are currently unknown. Therefore, we used liquid chromatography-mass spectroscopy (LC-MS) to determine the hepatic lipid composition of obese mice with NAFLD treated with bilirubin nanoparticles or vehicle control. We placed the mice on a high-fat diet (HFD) for 24 weeks and then treated them with bilirubin nanoparticles or vehicle control for 4 weeks while maintaining the HFD. Bilirubin nanoparticles suppressed hepatic fat content overall. After analyzing the lipidomics data, we determined that bilirubin inhibited the accumulation of ceramides in the liver. The bilirubin nanoparticles significantly lowered the hepatic expression of two essential enzymes that regulate ceramide production, Sgpl1 and Degs1. Our results demonstrate that the bilirubin nanoparticles improve hepatic fat content by reducing ceramide production, remodeling the liver fat content, and improving overall metabolic health.
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Affiliation(s)
- Zachary A. Kipp
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, 760 Press Avenue, Healthy Kentucky Research Building, Lexington, KY 40508, USA
| | - Genesee J. Martinez
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, 760 Press Avenue, Healthy Kentucky Research Building, Lexington, KY 40508, USA
| | - Evelyn A. Bates
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, 760 Press Avenue, Healthy Kentucky Research Building, Lexington, KY 40508, USA
| | - Agil B. Maharramov
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, 760 Press Avenue, Healthy Kentucky Research Building, Lexington, KY 40508, USA
| | - Robert M. Flight
- Department of Molecular and Cellular Biochemistry, University of Kentucky, Lexington, KY 40508, USA
- Markey Cancer Center, University of Kentucky, Lexington, KY 40508, USA
| | - Hunter N. B. Moseley
- Department of Molecular and Cellular Biochemistry, University of Kentucky, Lexington, KY 40508, USA
- Markey Cancer Center, University of Kentucky, Lexington, KY 40508, USA
- Institute for Biomedical Informatics, University of Kentucky, Lexington, KY 40508, USA
- Center for Clinical and Translational Sciences, University of Kentucky, Lexington, KY 40508, USA
| | - Andrew J. Morris
- Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - David E. Stec
- Department of Physiology & Biophysics, Cardiorenal, and Metabolic Diseases Research Center, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Terry D. Hinds
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, 760 Press Avenue, Healthy Kentucky Research Building, Lexington, KY 40508, USA
- Markey Cancer Center, University of Kentucky, Lexington, KY 40508, USA
- Barnstable Brown Diabetes Center, University of Kentucky, Lexington, KY 40508, USA
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4
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Farzana F, McConville MJ, Renoir T, Li S, Nie S, Tran H, Hannan AJ, Hatters DM, Boughton BA. Longitudinal spatial mapping of lipid metabolites reveals pre-symptomatic changes in the hippocampi of Huntington's disease transgenic mice. Neurobiol Dis 2023; 176:105933. [PMID: 36436748 DOI: 10.1016/j.nbd.2022.105933] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/16/2022] [Accepted: 11/23/2022] [Indexed: 11/26/2022] Open
Abstract
In Huntington's disease (HD), a key pathological feature includes the development of inclusion-bodies of fragments of the mutant huntingtin protein in the neurons of the striatum and hippocampus. To examine the molecular changes associated with inclusion-body formation, we applied MALDI-mass spectrometry imaging and deuterium pulse labelling to determine lipid levels and synthesis rates in the hippocampus of a transgenic mouse model of HD (R6/1 line). The R6/1 HD mice lacked inclusions in the hippocampus at 6 weeks of age (pre-symptomatic), whereas inclusions were pervasive by 16 weeks of age (symptomatic). Hippocampal subfields (CA1, CA3 and DG), which formed the highest density of inclusion formation in the mouse brain showed a reduction in the relative abundance of neuron-enriched lipids that have roles in neurotransmission, synaptic plasticity, neurogenesis, and ER-stress protection. Lipids involved in the adaptive response to ER stress (phosphatidylinositol, phosphatidic acid, and ganglioside classes) displayed increased rates of synthesis in HD mice relative to WT mice at all the ages examined, including prior to the formation of the inclusion bodies. Our findings, therefore, support a role for ER stress occurring pre-symptomatically and potentially contributing to pathological mechanisms underlying HD.
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Affiliation(s)
- Farheen Farzana
- Florey Institute of Neuroscience & Mental Health, The University of Melbourne, Victoria 3010, Australia; Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia
| | - Malcolm J McConville
- Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia; Metabolomics Australia, The University of Melbourne, Victoria 3010, Australia
| | - Thibault Renoir
- Florey Institute of Neuroscience & Mental Health, The University of Melbourne, Victoria 3010, Australia
| | - Shanshan Li
- Florey Institute of Neuroscience & Mental Health, The University of Melbourne, Victoria 3010, Australia
| | - Shuai Nie
- Melbourne Mass Spectrometry and Proteomics Facility, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia
| | - Harvey Tran
- Florey Institute of Neuroscience & Mental Health, The University of Melbourne, Victoria 3010, Australia
| | - Anthony J Hannan
- Florey Institute of Neuroscience & Mental Health, The University of Melbourne, Victoria 3010, Australia.
| | - Danny M Hatters
- Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia.
| | - Berin A Boughton
- School of Biosciences, The University of Melbourne, Victoria 3010, Australia; Australian National Phenome Centre, Murdoch University, Murdoch 6150, Western Australia, Australia.
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5
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Griffin H, Sullivan SC, Barger SW, Phelan KD, Baldini G. Liraglutide Counteracts Endoplasmic Reticulum Stress in Palmitate-Treated Hypothalamic Neurons without Restoring Mitochondrial Homeostasis. Int J Mol Sci 2022; 24:ijms24010629. [PMID: 36614074 PMCID: PMC9820707 DOI: 10.3390/ijms24010629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/19/2022] [Accepted: 12/24/2022] [Indexed: 12/31/2022] Open
Abstract
One feature of high-fat diet-induced neurodegeneration in the hypothalamus is an increased level of palmitate, which is associated with endoplasmic reticulum (ER) stress, loss of CoxIV, mitochondrial fragmentation, and decreased abundance of MC4R. To determine whether antidiabetic drugs protect against ER and/or mitochondrial dysfunction by lipid stress, hypothalamic neurons derived from pre-adult mice and neuronal Neuro2A cells were exposed to elevated palmitate. In the hypothalamic neurons, palmitate exposure increased expression of ER resident proteins, including that of SERCA2, indicating ER stress. Liraglutide reverted such altered ER proteostasis, while metformin only normalized SERCA2 expression. In Neuro2A cells liraglutide, but not metformin, also blunted dilation of the ER induced by palmitate treatment, and enhanced abundance and expression of MC4R at the cell surface. Thus, liraglutide counteracts, more effectively than metformin, altered ER proteostasis, morphology, and folding capacity in neurons exposed to fat. In palmitate-treated hypothalamic neurons, mitochondrial fragmentation took place together with loss of CoxIV and decreased mitochondrial membrane potential (MMP). Metformin, but not liraglutide, reverted mitochondrial fragmentation, and both liraglutide and metformin did not protect against either loss of CoxIV abundance or MMP. Thus, ER recovery from lipid stress can take place in hypothalamic neurons in the absence of recovered mitochondrial homeostasis.
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Affiliation(s)
- Haven Griffin
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Sarah C. Sullivan
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Steven W. Barger
- Department of Geriatrics, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Kevin D. Phelan
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Giulia Baldini
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
- Correspondence:
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Jäntti MH, Jackson SN, Kuhn J, Parkkinen I, Sree S, Hinkle JJ, Jokitalo E, Deterding LJ, Harvey BK. Palmitate and thapsigargin have contrasting effects on ER membrane lipid composition and ER proteostasis in neuronal cells. Biochim Biophys Acta Mol Cell Biol Lipids 2022; 1867:159219. [PMID: 35981704 PMCID: PMC9452468 DOI: 10.1016/j.bbalip.2022.159219] [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: 04/06/2022] [Revised: 07/21/2022] [Accepted: 08/10/2022] [Indexed: 11/25/2022]
Abstract
The endoplasmic reticulum (ER) is an organelle that performs several key functions such as protein synthesis and folding, lipid metabolism and calcium homeostasis. When these functions are disrupted, such as upon protein misfolding, ER stress occurs. ER stress can trigger adaptive responses to restore proper functioning such as activation of the unfolded protein response (UPR). In certain cells, the free fatty acid palmitate has been shown to induce the UPR. Here, we examined the effects of palmitate on UPR gene expression in a human neuronal cell line and compared it with thapsigargin, a known depletor of ER calcium and trigger of the UPR. We used a Gaussia luciferase-based reporter to assess how palmitate treatment affects ER proteostasis and calcium homeostasis in the cells. We also investigated how ER calcium depletion by thapsigargin affects lipid membrane composition by performing mass spectrometry on subcellular fractions and compared this to palmitate. Surprisingly, palmitate treatment did not activate UPR despite prominent changes to membrane phospholipids. Conversely, thapsigargin induced a strong UPR, but did not significantly change the membrane lipid composition in subcellular fractions. In summary, our data demonstrate that changes in membrane lipid composition and disturbances in ER calcium homeostasis have a minimal influence on each other in neuronal cells. These data provide new insight into the adaptive interplay of lipid homeostasis and proteostasis in the cell.
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Affiliation(s)
- Maria H Jäntti
- Molecular Mechanisms of Cellular Stress and Inflammation, Intramural Research Program, National Institute on Drug Abuse, Baltimore, MD 21224, USA.
| | - Shelley N Jackson
- Translational Analytical Core, Intramural Research Program, National Institute on Drug Abuse, Baltimore, MD 21224, USA
| | - Jeffrey Kuhn
- Mass Spectrometry Research and Support Group, National Institute of Environmental Health Sciences, Research Triangle Park, Durham, NC 27709, USA
| | - Ilmari Parkkinen
- Neuroscience Center, Helsinki Institute for Life Science, University of Helsinki, Haartmaninkatu 8, 00014 Helsinki, Finland
| | - Sreesha Sree
- Cell and Tissue Dynamics Research Programme, Institute of Biotechnology, Helsinki Institute of Life Science, University of Helsinki, Finland
| | - Joshua J Hinkle
- Molecular Mechanisms of Cellular Stress and Inflammation, Intramural Research Program, National Institute on Drug Abuse, Baltimore, MD 21224, USA
| | - Eija Jokitalo
- Cell and Tissue Dynamics Research Programme, Institute of Biotechnology, Helsinki Institute of Life Science, University of Helsinki, Finland
| | - Leesa J Deterding
- Mass Spectrometry Research and Support Group, National Institute of Environmental Health Sciences, Research Triangle Park, Durham, NC 27709, USA
| | - Brandon K Harvey
- Molecular Mechanisms of Cellular Stress and Inflammation, Intramural Research Program, National Institute on Drug Abuse, Baltimore, MD 21224, USA.
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7
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Zhang S, Hu L, Han C, Huang R, Ooi K, Qian X, Ren X, Chu D, Zhang H, Du D, Xia C. PLIN2 Mediates Neuroinflammation and Oxidative/Nitrosative Stress via Downregulating Phosphatidylethanolamine in the Rostral Ventrolateral Medulla of Stressed Hypertensive Rats. J Inflamm Res 2021; 14:6331-6348. [PMID: 34880641 PMCID: PMC8646230 DOI: 10.2147/jir.s329230] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 09/03/2021] [Indexed: 12/22/2022] Open
Abstract
Purpose Oxidative/nitrosative stress, neuroinflammation and their intimate interactions mediate sympathetic overactivation in hypertension. An immoderate inflammatory response is characterized not only by elevated proinflammatory cytokines (PICs) but by increases in mitochondrial dysfunction, reactive oxygen species (ROS), and nitric oxide (NO). Recent data pinpoint that both the phospholipid and lipid droplets (LDs) are potent modulators of microglia physiology. Methods Stress rats underwent compound stressors for 15 days with PLIN2-siRNA or scrambled-siRNA (SC-siRNA) administrated into the rostral ventrolateral medulla (RVLM). Lipids were analyzed by mass spectroscopy-based quantitative lipidomics. The phenotypes and proliferation of microglia, LDs, in the RVLM of rats were detected; blood pressure (BP) and myocardial injury in rats were evaluated. The anti-oxidative/nitrosative stress effect of phosphatidylethanolamine (PE) was explored in cultured primary microglia. Results Lipidomics analysis showed that 75 individual lipids in RVLM were significantly dysregulated by stress [PE was the most one], demonstrating that lipid composition changed with stress. In vitro, prorenin stress induced the accumulation of LDs, increased PICs, which could be blocked by siRNA-PLIN2 in microglia. PLIN2 knockdown upregulated the PE synthesis in microglia. Anti-oxidative/nitrosative stress effect of PE delivery was confirmed by the decrease of ROS and decrease in 3-NT and MDA in prorenin-treated microglia. PLIN2 knockdown in the RVLM blocked the number of iNOS+ and PCNA+ microglia, decreased BP, alleviated cardiac fibrosis and hypertrophy in stressed rats. Conclusion PLIN2 mediates microglial polarization/proliferation via downregulating PE in the RVLM of stressed rats. Delivery of PE is a promising strategy for combating neuroinflammation and oxidative/nitrosative stress in stress-induced hypertension.
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Affiliation(s)
- Shutian Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
| | - Li Hu
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200240, People's Republic of China
| | - Chengzhi Han
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
| | - Renhui Huang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
| | - Kokwin Ooi
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
| | - Xinyi Qian
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
| | - Xiaorong Ren
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
| | - Dechang Chu
- College of Agriculture and Bioengineering, Heze University, Heze, 274000, People's Republic of China
| | - Haili Zhang
- College of Agriculture and Bioengineering, Heze University, Heze, 274000, People's Republic of China
| | - Dongshu Du
- School of Life Science, Shanghai University, Shanghai, 200444, People's Republic of China
| | - Chunmei Xia
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
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8
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Ajoolabady A, Wang S, Kroemer G, Klionsky DJ, Uversky VN, Sowers JR, Aslkhodapasandhokmabad H, Bi Y, Ge J, Ren J. ER Stress in Cardiometabolic Diseases: From Molecular Mechanisms to Therapeutics. Endocr Rev 2021; 42:839-871. [PMID: 33693711 DOI: 10.1210/endrev/bnab006] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Indexed: 02/08/2023]
Abstract
The endoplasmic reticulum (ER) hosts linear polypeptides and fosters natural folding of proteins through ER-residing chaperones and enzymes. Failure of the ER to align and compose proper protein architecture leads to accumulation of misfolded/unfolded proteins in the ER lumen, which disturbs ER homeostasis to provoke ER stress. Presence of ER stress initiates the cytoprotective unfolded protein response (UPR) to restore ER homeostasis or instigates a rather maladaptive UPR to promote cell death. Although a wide array of cellular processes such as persistent autophagy, dysregulated mitophagy, and secretion of proinflammatory cytokines may contribute to the onset and progression of cardiometabolic diseases, it is well perceived that ER stress also evokes the onset and development of cardiometabolic diseases, particularly cardiovascular diseases (CVDs), diabetes mellitus, obesity, and chronic kidney disease (CKD). Meanwhile, these pathological conditions further aggravate ER stress, creating a rather vicious cycle. Here in this review, we aimed at summarizing and updating the available information on ER stress in CVDs, diabetes mellitus, obesity, and CKD, hoping to offer novel insights for the management of these cardiometabolic comorbidities through regulation of ER stress.
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Affiliation(s)
- Amir Ajoolabady
- University of Wyoming College of Health Sciences, Laramie, Wyoming 82071, USA
| | - Shuyi Wang
- University of Wyoming College of Health Sciences, Laramie, Wyoming 82071, USA
- School of Medicine Shanghai University, Shanghai 200444, China
| | - Guido Kroemer
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France
- Suzhou Institute for Systems Medicine, Chinese Academy of Medical Sciences, Suzhou, China
- Karolinska Institute, Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, Sweden
| | - Daniel J Klionsky
- Life Sciences Institute and Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Vladimir N Uversky
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, Florida 33612, USA
| | - James R Sowers
- Dalton and Diabetes and Cardiovascular Center, University of Missouri Columbia, Columbia, Missouri 65212, USA
| | | | - Yaguang Bi
- Shanghai Institute of Cardiovascular Diseases, Department of Cardiology, Zhongshan Hospital Fudan University, Shanghai 200032, China
| | - Junbo Ge
- Shanghai Institute of Cardiovascular Diseases, Department of Cardiology, Zhongshan Hospital Fudan University, Shanghai 200032, China
| | - Jun Ren
- University of Wyoming College of Health Sciences, Laramie, Wyoming 82071, USA
- Shanghai Institute of Cardiovascular Diseases, Department of Cardiology, Zhongshan Hospital Fudan University, Shanghai 200032, China
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington 98195, USA
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9
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Quistgaard EM. BAP31: Physiological functions and roles in disease. Biochimie 2021; 186:105-129. [PMID: 33930507 DOI: 10.1016/j.biochi.2021.04.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 04/20/2021] [Accepted: 04/21/2021] [Indexed: 12/22/2022]
Abstract
B-cell receptor-associated protein 31 (BAP31 or BCAP31) is a ubiquitously expressed transmembrane protein found mainly in the endoplasmic reticulum (ER), including in mitochondria-associated membranes (MAMs). It acts as a broad-specificity membrane protein chaperone and quality control factor, which can promote different fates for its clients, including ER retention, ER export, ER-associated degradation (ERAD), or evasion of degradation, and it also acts as a MAM tetherer and regulatory protein. It is involved in several cellular processes - it supports ER and mitochondrial homeostasis, promotes proliferation and migration, plays several roles in metabolism and the immune system, and regulates autophagy and apoptosis. Full-length BAP31 can be anti-apoptotic, but can also mediate activation of caspase-8, and itself be cleaved by caspase-8 into p20-BAP31, which promotes apoptosis by mobilizing ER calcium stores at MAMs. BAP31 loss-of-function mutations is the cause of 'deafness, dystonia, and central hypomyelination' (DDCH) syndrome, characterized by severe neurological symptoms and early death. BAP31 is furthermore implicated in a growing number of cancers and other diseases, and several viruses have been found to target it to promote their survival or life cycle progression. The purpose of this review is to provide an overview and examination of the basic properties, functions, mechanisms, and roles in disease of BAP31.
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Affiliation(s)
- Esben M Quistgaard
- Department of Molecular Biology and Genetics - DANDRITE, Aarhus University, Gustav Wieds Vej 10, DK-8000 Aarhus C, Denmark.
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10
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Dahdah N, Gonzalez-Franquesa A, Samino S, Gama-Perez P, Herrero L, Perales JC, Yanes O, Malagón MDM, Garcia-Roves PM. Effects of Lifestyle Intervention in Tissue-Specific Lipidomic Profile of Formerly Obese Mice. Int J Mol Sci 2021; 22:3694. [PMID: 33916315 PMCID: PMC8037078 DOI: 10.3390/ijms22073694] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 03/26/2021] [Accepted: 03/28/2021] [Indexed: 01/06/2023] Open
Abstract
Lipids are highly diverse in their composition, properties and distribution in different biological entities. We aim to establish the lipidomes of several insulin-sensitive tissues and to test their plasticity when divergent feeding regimens and lifestyles are imposed. Here, we report a proton nuclear magnetic resonance (1H-NMR) study of lipid abundance across 4 tissues of C57Bl6J male mice that includes the changes in the lipid profile after every lifestyle intervention. Every tissue analysed presented a specific lipid profile irrespective of interventions. Glycerolipids and fatty acids were most abundant in epididymal white adipose tissue (eWAT) followed by liver, whereas sterol lipids and phosphoglycerolipids were highly enriched in hypothalamus, and gastrocnemius had the lowest content in all lipid species compared to the other tissues. Both when subjected to a high-fat diet (HFD) and after a subsequent lifestyle intervention (INT), the lipidome of hypothalamus showed no changes. Gastrocnemius and liver revealed a pattern of increase in content in many lipid species after HFD followed by a regression to basal levels after INT, while eWAT lipidome was affected mainly by the fat composition of the administered diets and not their caloric density. Thus, the present study demonstrates a unique lipidome for each tissue modulated by caloric intake and dietary composition.
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MESH Headings
- Adipose Tissue, White/metabolism
- Animals
- Caloric Restriction
- Diabetes Mellitus, Experimental/etiology
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Type 2/etiology
- Diabetes Mellitus, Type 2/metabolism
- Diet, High-Fat/adverse effects
- Disease Models, Animal
- Healthy Lifestyle
- Hypothalamus/metabolism
- Lipidomics
- Liver/metabolism
- Male
- Mice, Inbred C57BL
- Muscle, Skeletal/metabolism
- Obesity/complications
- Obesity/diet therapy
- Obesity/metabolism
- Physical Conditioning, Animal
- Mice
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Affiliation(s)
- Norma Dahdah
- Department of Physiological Sciences, Universitat de Barcelona, 08907 Barcelona, Spain; (A.G.-F.); (P.G.-P.); (J.C.P.)
| | - Alba Gonzalez-Franquesa
- Department of Physiological Sciences, Universitat de Barcelona, 08907 Barcelona, Spain; (A.G.-F.); (P.G.-P.); (J.C.P.)
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Sara Samino
- Universitat Rovira i Virgili, Department of Electronic Engineering & IISPV, 43004 Tarragona, Spain; (S.S.); (O.Y.)
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Pau Gama-Perez
- Department of Physiological Sciences, Universitat de Barcelona, 08907 Barcelona, Spain; (A.G.-F.); (P.G.-P.); (J.C.P.)
| | - Laura Herrero
- Department of Biochemistry and Physiology, School of Pharmacy and Food Sciences, Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, 08028 Barcelona, Spain;
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain;
| | - José Carlos Perales
- Department of Physiological Sciences, Universitat de Barcelona, 08907 Barcelona, Spain; (A.G.-F.); (P.G.-P.); (J.C.P.)
- Nutrition, Metabolism and Gene Therapy Group, Diabetes and Metabolism Program, Institut d’Investigació Biomèdica de Bellvitge (IDIBELL), 08908 Barcelona, Spain
| | - Oscar Yanes
- Universitat Rovira i Virgili, Department of Electronic Engineering & IISPV, 43004 Tarragona, Spain; (S.S.); (O.Y.)
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Maria Del Mar Malagón
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain;
- Department of Cell Biology, Physiology and Immunology, IMIBIC, Reina Sofía University Hospital, University of Córdoba, 14004 Cordoba, Spain
| | - Pablo Miguel Garcia-Roves
- Department of Physiological Sciences, Universitat de Barcelona, 08907 Barcelona, Spain; (A.G.-F.); (P.G.-P.); (J.C.P.)
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain;
- Nutrition, Metabolism and Gene Therapy Group, Diabetes and Metabolism Program, Institut d’Investigació Biomèdica de Bellvitge (IDIBELL), 08908 Barcelona, Spain
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11
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Nyamugenda E, Griffin H, Russell S, Cooney KA, Kowalczyk NS, Islam I, Phelan KD, Baldini G. Selective Survival of Sim1/MC4R Neurons in Diet-Induced Obesity. iScience 2020; 23:101114. [PMID: 32438321 PMCID: PMC7240135 DOI: 10.1016/j.isci.2020.101114] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 03/19/2020] [Accepted: 04/27/2020] [Indexed: 12/12/2022] Open
Abstract
In the melanocortin pathway, melanocortin-4 receptor (MC4R) functions to control energy homeostasis. MC4R is expressed in a sub-population of Sim1 neurons (Sim1/MC4R neurons) and functions in hypothalamic paraventricular nuclei (PVN) to control food intake. Mapping sites of hypothalamic injury in obesity is essential to counteract the disease. In the PVN of male and female mice with diet-induced obesity (DIO) there is neuronal loss. However, the existing subpopulation of PVN Sim1/MC4R neurons is unchanged, but has a loss of mitochondria and MC4R protein. In mice of both sexes with DIO, dietary intervention to re-establish normal weight restores abundance of MC4R protein in Sim1/MC4R neurons and neurogenesis in the PVN. However, the number of non-Sim1/MC4R neurons in the PVN continues to remain decreased. Selective survival and recovery of Sim1/MC4R neurons after DIO suggests these neurons as preferential target to restore energy homeostasis and of therapy against obesity.
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Affiliation(s)
- Eugene Nyamugenda
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Haven Griffin
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Susan Russell
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Kimberly A Cooney
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Nicholas S Kowalczyk
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Ishrar Islam
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Kevin D Phelan
- Department of Neurobiology & Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Giulia Baldini
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA.
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