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Yu W, Tong MJ, Wu GH, Ma TL, Cai CD, Wang LP, Zhang YK, Gu JL, Yan ZQ. FoxO3 Regulates Mouse Bone Mesenchymal Stem Cell Fate and Bone-Fat Balance During Skeletal Aging. Stem Cells Dev 2024. [PMID: 38661524 DOI: 10.1089/scd.2024.0055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024] Open
Abstract
Age-related osteoporosis is characterized by an imbalance between osteogenic and adipogenic differentiation in bone mesenchymal stem cells (BMSCs). Forkhead box O 3 (FoxO3) transcription factor is involved in lifespan and cell differentiation. In this study, we explore whether FoxO3 regulates age-related bone loss and marrow fat accumulation. The expression levels of FoxO3 in BMSCs during aging were detected in vivo and in vitro. To explore the role of FoxO3 in osteogenic and adipogenic differentiation, primary BMSCs were isolated from young and aged mice. FoxO3 expression was modulated by adenoviral vector transfection. The role of FoxO3 in bone-fat balance was evaluated by alizarin red S staining, oil red O staining, quantitative reverse transcription-polymerase chain reaction, Western blot, and histological analysis. Age-related bone loss and fat deposit are associated with downregulation of FoxO3. Overexpression of FoxO3 alleviated age-related bone loss and marrow fat accumulation in aged mice. Mechanistically, FoxO3 reduced adipogenesis and enhanced osteogenesis of BMSCs via downregulation of PPAR-γ and Notch signaling, respectively. In conclusion, FoxO3 is an essential factor controlling the fate of BMSCs and is a potential target for the prevention of age-related osteoporosis.
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Affiliation(s)
- Wei Yu
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Min-Ji Tong
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Guo-Hao Wu
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Tian-Le Ma
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chuan-Dong Cai
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Li-Peng Wang
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ying-Kai Zhang
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jin-Lun Gu
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zuo-Qin Yan
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
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2
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Sekar M, Thirumurugan K. Autophagic Regulation of Adipogenesis Through TP53INP2: Insights from In Silico and In Vitro Analysis. Mol Biotechnol 2024; 66:1188-1205. [PMID: 38238641 DOI: 10.1007/s12033-023-01020-6] [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: 10/28/2023] [Accepted: 12/04/2023] [Indexed: 05/12/2024]
Abstract
Obesity is an epidemic disease associated with multimorbidity resulting in higher mortality risk. The imbalance between energy storage and expenditure is the prime factor in the prognosis of the disease. Specifically, excessive lipid storage through adipogenesis leads to obesity. Adipogenesis is the process that converts preadipocytes into mature adipocytes by regulating major transcription factors like PPARγ and C/EBPα, contributes to lipid storage in adipose tissue. On the contrary, autophagy is a self-degradative process that maintains homeostasis in adipose tissue by regulating adipogenesis and lipolysis. TP53INP2 is a key player that regulates the autophagy process, and it negatively regulates adipogenesis and lipid storage. The gene expression profile GSE93637 was retrieved from the GEO database and analyzed using an integrated bioinformatics approach. The differentially expressed genes (DEGs) were analyzed using R-Bioconductor for TP53INP2 knockdown microarray dataset of 3T3L1 cells, and the DEGs were analyzed for the functional enrichment analysis. Further, the genes involved in the potential biological and molecular functions were evaluated for pathway enrichment analysis by KEGG (Kyoto Encyclopedia of Genes and Genomes). A total of 726 DEGs were found including 391 upregulated and 335 downregulated genes. Further, the functional and pathway enrichment analysis was employed to identify the highly interacting genes, and we identified a total of 56 genes that are highly interacting through a protein-protein interaction network. The DEGs mainly regulate the Peroxisome proliferator-activated receptor (PPAR) signaling pathway, lipolysis, and autophagy. Further, we investigated the associated Hub genes for enriched pathway genes and found the involvement of two autophagic genes ATG7 and sequestosome 1 (p62). In addition, in vitro studies of qRT-PCR (Quantitative real-time polymerase chain reaction) and Western blot analysis revealed that increased autophagy resulted in reduced lipid storage through down-regulation of the adipogenic gene. Moreover, increased expression of autophagic gene TP53INP2 and ATG7 facilitates the down-regulation of p62 and PPARγ gene resulting in lipolysis in mature adipocytes through autophagy. There is no specific treatment to reduce obesity other than a caloric diet and exercise. Hence, this study provides sufficient evidence to conclude that TP53INP2 negatively regulates adipogenesis and increases the degradation of lipids in mature adipocytes which is crucial for reducing obesity. Therefore, it is plausible to consider TP53INP2 as a promising therapeutic target for managing adipogenesis and obesity. However, further studies are necessary to validate their functional and molecular pathway analysis in the regulation of adipogenesis and obesity.
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Affiliation(s)
- Mouliganesh Sekar
- Structural Biology Lab, #412, Pearl Research Park, School of Biosciences & Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India
| | - Kavitha Thirumurugan
- Structural Biology Lab, #412, Pearl Research Park, School of Biosciences & Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India.
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3
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Xiao F, Chen C, Zhang W, Wang J, Wu K. FOXO3/Rab7-Mediated Lipophagy and Its Role in Zn-Induced Lipid Metabolism in Yellow Catfish ( Pelteobagrus fulvidraco). Genes (Basel) 2024; 15:334. [PMID: 38540393 PMCID: PMC10969980 DOI: 10.3390/genes15030334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 02/29/2024] [Accepted: 03/01/2024] [Indexed: 06/14/2024] Open
Abstract
Lipophagy is a selective autophagy that regulates lipid metabolism and reduces hepatic lipid deposition. However, the underlying mechanism has not been understood in fish. In this study, we used micronutrient zinc (Zn) as a regulator of autophagy and lipid metabolism and found that Ras-related protein 7 (rab7) was involved in Zn-induced lipophagy in hepatocytes of yellow catfish Pelteobagrus pelteobagrus. We then characterized the rab7 promoter and identified binding sites for a series of transcription factors, including Forkhead box O3 (FOXO3). Site mutation experiments showed that the -1358/-1369 bp FOXO3 binding site was responsible for Zn-induced transcriptional activation of rab7. Further studies showed that inhibition of rab7 significantly inhibited Zn-induced lipid degradation by lipophagy. Moreover, rab7 inhibitor also mitigated the Zn-induced increase of cpt1α and acadm expression. Our results suggested that Zn exerts its lipid-lowering effect partly through rab7-mediated lipophagy and FA β-oxidation in hepatocytes. Overall, our findings provide novel insights into the FOXO3/rab7 axis in lipophagy regulation and enhance the understanding of lipid metabolism by micronutrient Zn, which may help to reduce excessive lipid accumulation in fish.
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Affiliation(s)
- Fei Xiao
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China; (F.X.); (C.C.); (J.W.)
- Nansha-South China Agricultural University Fishery Research Institute, Guangzhou 510642, China
| | - Chuan Chen
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China; (F.X.); (C.C.); (J.W.)
- Nansha-South China Agricultural University Fishery Research Institute, Guangzhou 510642, China
| | - Wuxiao Zhang
- College of Marine and Biology Engineering, Yancheng Institute of Technology, Yancheng 224051, China;
| | - Jiawei Wang
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China; (F.X.); (C.C.); (J.W.)
- Nansha-South China Agricultural University Fishery Research Institute, Guangzhou 510642, China
| | - Kun Wu
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China; (F.X.); (C.C.); (J.W.)
- Nansha-South China Agricultural University Fishery Research Institute, Guangzhou 510642, China
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4
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Feng P, Pang P, Sun Z, Xie Z, Chen T, Wang S, Cao Q, Mi R, Zeng C, Lu Y, Yu W, Shen H, Wu Y. Enhancer-mediated FOXO3 expression promotes MSC adipogenic differentiation by activating autophagy. Biochim Biophys Acta Mol Basis Dis 2024; 1870:166975. [PMID: 38043828 DOI: 10.1016/j.bbadis.2023.166975] [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: 09/19/2023] [Revised: 11/11/2023] [Accepted: 11/24/2023] [Indexed: 12/05/2023]
Abstract
BACKGROUND Mesenchymal stem cells (MSCs) are pluripotent stem cells capable of differentiating into osteocytes, adipocytes and chondrocytes. However, in osteoporosis, the balance of differentiation is tipped toward adipogenesis and the key mechanism is controversial. Researches have shown that, as upstream regulatory elements of gene expression, enhancers ar involved in the expression of identity genes. In this study, we identified enhancers-mediated gene FOXO3 promoting MSC adipogenic differentiation by activating autophagy. METHODS We integrated data of RNA sequencing (RNA-seq), chromatin immunoprecipitation sequencing (ChIP-seq) and ATAC-sequencing (ATAC-seq) to find the identity gene FOXO3. The expression of FOXO3 protein, adipogenic transcription factors and the substrate of autophagy were measured by western blotting. The Oil Red O (ORO) staining was used to visualize the adipogenesis of MSCs. Immunohistochemistry was used to visualize the FOXO3 expression in adipocytes in bone marrow. Immunofluorescence was used to detect the expression of PPARγ and LC3B. RESULTS During adipogenesis, enhancers redistribute to genes associated with adipogenic differentiation, among which we identified the pivotal identity gene FOXO3. FOXO3 could promote the expression of the adipogenic transcription factors PPARγ, CEBPα, and CEBPβ during adipogenic differentiation, while PPARγ, CEBPα, and CEBPβ could in turn bind to FOXO3 and continue to promote FOXO3 expression to form a positive feedback loop. Consistently elevated FOXO3 expression promotes autophagy by activating the PI3K-AKT pathway which mediates adipogenic differentiation. CONCLUSIONS Pivotal identity gene FOXO3 promotes autophagy by activating PI3K-AKT pathway, which provokes adipogenic differentiation of MSCs. Enhancer-regulated adipogenic identity gene FOXO3 could be an attractive treatment for osteoporosis.
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Affiliation(s)
- Pei Feng
- Center for Biotherapy, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China
| | - Peizhuo Pang
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China
| | - Zehang Sun
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China
| | - Zhongyu Xie
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China
| | - Tingting Chen
- Department of Ophthalmology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong Province, PR China
| | - Shan Wang
- Center for Biotherapy, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China
| | - Qian Cao
- Center for Biotherapy, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China
| | - Rujia Mi
- Center for Biotherapy, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China
| | - Chenying Zeng
- Center for Biotherapy, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China
| | - Yixuan Lu
- Center for Biotherapy, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China
| | - Wenhui Yu
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China.
| | - Huiyong Shen
- Department of Orthopedics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China.
| | - Yanfeng Wu
- Center for Biotherapy, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518003, PR China.
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5
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Sun W, Kou H, Fang Y, Xu F, Xu Z, Wang X, Yin R, Zhang Q, Jiang Q, Xu Y. FOXO3a-regulated arginine metabolic plasticity adaptively promotes esophageal cancer proliferation and metastasis. Oncogene 2024; 43:216-223. [PMID: 38049565 DOI: 10.1038/s41388-023-02906-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 11/10/2023] [Accepted: 11/21/2023] [Indexed: 12/06/2023]
Abstract
Esophageal squamous cell carcinoma (ESCC) is a common malignant tumor with a poor prognosis due to a lack of early detection. Indeed, the mechanisms underlying ESCC progression remain unclear. Here, we discovered that abnormal arginine metabolism contributes to ESCC progression. Based on transcriptomic and metabolomic analyses, we found that argininosuccinate synthetase 1 (ASS1) and argininosuccinate lyase (ASL) levels were increased in primary tumor tissues but decreased in lymph-metastatic tumor tissues. Intriguingly, FOXO3a was inversely correlated with ASS1 and ASL in primary and metastatic tumor tissues, suggesting that FOXO3a dissimilarly regulates ASS1 and ASL at different stages of ESCC. Silencing ASS1/ASL inhibited primary tumor growth and promoted metastasis. Conversely, overexpression of ASS1/ASL or increased arginine supply promoted tumor proliferation but suppressed metastasis. In addition, FOXO3a activation inhibited primary tumor growth by repressing ASS1 and ASL transcription, whereas inactivation of FOXO3a impeded metastasis by releasing ASS1 and ASL transcription. Together, the finding sheds light on metastatic reprogramming in ESCC.
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Affiliation(s)
- Wenbo Sun
- Affiliated Eye Hospital, Nanjing Medical University, 138 Hanzhong Road, Nanjing, 210029, China
- Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China
- Department of Thoracic Surgery, The First Affiliated Hospital, Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China
| | - Hengyuan Kou
- Affiliated Eye Hospital, Nanjing Medical University, 138 Hanzhong Road, Nanjing, 210029, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention, and Treatment, Nanjing Medical University, 101 Longman Avenue, Nanjing, 211166, China
| | - Yao Fang
- Affiliated Eye Hospital, Nanjing Medical University, 138 Hanzhong Road, Nanjing, 210029, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention, and Treatment, Nanjing Medical University, 101 Longman Avenue, Nanjing, 211166, China
| | - Fan Xu
- Affiliated Eye Hospital, Nanjing Medical University, 138 Hanzhong Road, Nanjing, 210029, China
- Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China
| | - Zhi Xu
- Affiliated Eye Hospital, Nanjing Medical University, 138 Hanzhong Road, Nanjing, 210029, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention, and Treatment, Nanjing Medical University, 101 Longman Avenue, Nanjing, 211166, China
| | - Xiumei Wang
- Jiangsu Key Lab of Cancer Biomarkers, Prevention, and Treatment, Nanjing Medical University, 101 Longman Avenue, Nanjing, 211166, China
| | - Rong Yin
- Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China
| | - Qin Zhang
- Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China.
| | - Qin Jiang
- Affiliated Eye Hospital, Nanjing Medical University, 138 Hanzhong Road, Nanjing, 210029, China.
| | - Yong Xu
- Affiliated Eye Hospital, Nanjing Medical University, 138 Hanzhong Road, Nanjing, 210029, China.
- Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China.
- Jiangsu Key Lab of Cancer Biomarkers, Prevention, and Treatment, Nanjing Medical University, 101 Longman Avenue, Nanjing, 211166, China.
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6
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Romero-Herrera I, Nogales F, Gallego-López MDC, Díaz-Castro J, Moreno-Fernandez J, Ochoa JJ, Carreras O, Ojeda ML. Adipose tissue homeostasis orchestrates the oxidative, energetic, metabolic and endocrine disruption induced by binge drinking in adolescent rats. J Physiol 2023; 601:5617-5633. [PMID: 37994192 DOI: 10.1113/jp285362] [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: 07/25/2023] [Accepted: 10/31/2023] [Indexed: 11/24/2023] Open
Abstract
Binge drinking (BD) is the most common alcohol consumption model for adolescents, and has recently been related to the generation of high oxidation and insulin resistance (IR). White adipose tissue (WAT) is a target organ for insulin action that regulates whole-body metabolism by secreting adipokines. The present study aimed to analyse the oxidative, inflammatory, energetic and endocrine profile in the WAT of BD-exposed adolescent rats, to obtain an integrative view of insulin secretion and WAT in IR progression. Two groups of male adolescent rats were used: control (n = 8) and BD (n = 8). An intermittent i.p. BD model (20% v/v) was used during 3 consecutive weeks. BD exposure led to a pancreatic oxidative imbalance, which was joint to high insulin secretion by augmenting deacetylase sirtuin-1 (SIRT-1) pancreatic expression and serum adipsin levels. However, BD rats had hyperglycaemia and high homeostasis model assessment of insulin resistance value (HOMA-IR). BD exposure in WAT increased lipid oxidation, as well as decreased insulin receptor substrate 1 (IRS-1) and AKT expression, sterol regulatory element-binding protein 1 (SREBP1), forkhead box O3A (FOXO3a) and peroxisome proliferator-activated receptor γ (PPARγ), and adipocyte size. BD also affected the expression of proteins related to energy balance, such as SIRT-1 and AMP activated protein kinase (AMPK), affecting the adipokine secretion profile (increasing resistin/adiponectin ratio). BD altered the entire serum lipid profile, increasing the concentration of free fatty acids. In conclusion, BD led to an oxidative imbalance and IR process in WAT, which modified the energy balance in this tissue, decreasing the WAT lipogenic/lipolytic ratio, affecting adipokine secretion and the systemic lipid profile, and contributing to the progression of IR. Therefore, WAT is key in the generation of metabolic and endocrine disruption after BD exposure during adolescence in rats. KEY POINTS: Adolescent rat binge drinking (BD) exposure leads to hepatic and systemic oxidative stress (OS) via reactive oxygen species generation, causing hepatic insulin resistance (IR) and altered energy metabolism. In the present study, BD exposure in adolescent rats induces OS in the pancreas, with increased insulin secretion despite hyperglycaemia, indicating a role for IR in white adipose tissue (WAT) homeostasis. In WAT, BD produces IR and an oxidative and energetic imbalance, triggering an intense lipolysis where the serum lipid profile is altered and free fatty acids are increased, consistent with liver lipid accumulation and steatosis. BD exposure heightens inflammation in WAT, elevating pro-inflammatory and reducing anti-inflammatory adipokines, favouring cardiovascular damage. This research provides a comprehensive view of how adolescent BD in rats impacts liver, WAT and pancreas homeostasis, posing a risk for future cardiometabolic complications in adulthood.
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Affiliation(s)
- Inés Romero-Herrera
- Department of Physiology, Faculty of Pharmacy, Seville University, Seville, Spain
| | - Fátima Nogales
- Department of Physiology, Faculty of Pharmacy, Seville University, Seville, Spain
| | | | - Javier Díaz-Castro
- Institute of Nutrition and Food Technology 'José Mataix Verdú', University of Granada, Granada, Spain
- Department of Physiology, University of Granada, Granada, Spain
| | - Jorge Moreno-Fernandez
- Institute of Nutrition and Food Technology 'José Mataix Verdú', University of Granada, Granada, Spain
- Department of Physiology, University of Granada, Granada, Spain
| | - Julio José Ochoa
- Institute of Nutrition and Food Technology 'José Mataix Verdú', University of Granada, Granada, Spain
- Department of Physiology, University of Granada, Granada, Spain
| | - Olimpia Carreras
- Department of Physiology, Faculty of Pharmacy, Seville University, Seville, Spain
| | - Mª Luisa Ojeda
- Department of Physiology, Faculty of Pharmacy, Seville University, Seville, Spain
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7
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Song Y, Wei D, Raza SHA, Zhao Y, Jiang C, Song X, Wu H, Wang X, Luoreng Z, Ma Y. Research progress of intramuscular fat formation based on co-culture. Anim Biotechnol 2023; 34:3216-3236. [PMID: 36200856 DOI: 10.1080/10495398.2022.2127410] [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: 11/01/2022]
Abstract
Intramuscular fat (IMF) is closely related to the meat quality of livestock and poultry. As a new cell culture technique in vitro, cell co-culture has been gradually applied to the related research of IMF formation because it can simulate the changes of microenvironment in vivo during the process of IMF cell formation. In the co-culture model, in addition to studying the effects of skeletal muscle cells on the proliferation and differentiation of IMF, we can also consider the role of many secretion factors in the formation of IMF, thus making the cell research in vitro closer to the real level in vivo. This paper reviewed the generation and origin of IMF, summarized the existing co-culture methods and systems, and discussed the advantages and disadvantages of each method as well as the challenges faced in the establishment of the system, with emphasis on the current status of research on the formation of IMF for human and animal based on co-culture technology.
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Affiliation(s)
- Yaping Song
- School of Agriculture, Ningxia University, Ningxia Yin Chuan, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia University, Ningxia Yinchuan, China
| | - Dawei Wei
- School of Agriculture, Ningxia University, Ningxia Yin Chuan, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia University, Ningxia Yinchuan, China
| | | | - Yiang Zhao
- School of Agriculture, Ningxia University, Ningxia Yin Chuan, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia University, Ningxia Yinchuan, China
| | - Chao Jiang
- School of Agriculture, Ningxia University, Ningxia Yin Chuan, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia University, Ningxia Yinchuan, China
| | - Xiaoyu Song
- School of Agriculture, Ningxia University, Ningxia Yin Chuan, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia University, Ningxia Yinchuan, China
| | - Hao Wu
- School of Agriculture, Ningxia University, Ningxia Yin Chuan, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia University, Ningxia Yinchuan, China
| | - Xingping Wang
- School of Agriculture, Ningxia University, Ningxia Yin Chuan, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia University, Ningxia Yinchuan, China
| | - Zhuoma Luoreng
- School of Agriculture, Ningxia University, Ningxia Yin Chuan, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia University, Ningxia Yinchuan, China
| | - Yun Ma
- School of Agriculture, Ningxia University, Ningxia Yin Chuan, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia University, Ningxia Yinchuan, China
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8
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Chen Y, Wu Y, Fang L, Zhao H, Xu S, Shuai Z, Yu H, Cai G, Zhan HQ, Pan F. METTL14-m6A-FOXO3a axis regulates autophagy and inflammation in ankylosing spondylitis. Clin Immunol 2023; 257:109838. [PMID: 37935312 DOI: 10.1016/j.clim.2023.109838] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 10/23/2023] [Accepted: 11/01/2023] [Indexed: 11/09/2023]
Abstract
The role of m6A in ankylosing spondylitis (AS) remains largely obscure. In this study, we found that m6A modification was decreased in T cells of AS, and the abnormal m6A modification was attributed to the downregulation of methyltransferase-like 14 (METTL14). METTL14 exerted a critical role in regulating autophagy activity and inflammation via targeting Forkhead box O3a (FOXO3a). Mechanistically, the loss of METTL14 decreased the expression of FOXO3a, leading to the damage of autophagic flux and the aggravation of inflammation. Inversely, the forced expression of METTL14 upregulated the expression of FOXO3a, thereby activating autophagy and alleviating inflammation. Furthermore, our results revealed that METTL14 targeted FOXO3a mRNA and regulated its expression and stability in a m6A-dependent manner. These findings uncovered the functional importance of m6A methylation mechanisms in the regulation of autophagy and inflammation, which expanded our understanding of this interaction and was critical for the development of therapeutic strategies for AS.
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Affiliation(s)
- Yuting Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China; The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Ye Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China; The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Lanlan Fang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China; The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Hui Zhao
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China; The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Shenqian Xu
- Department of Rheumatism and Immunity, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Zongwen Shuai
- Department of Rheumatism and Immunity, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Haiyang Yu
- Department of Orthopedics, Fuyang People's Hospital, 501 Sanqing Road, Fuyang, Anhui 236000, China
| | - Guoqi Cai
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China; The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - He-Qin Zhan
- Department of Pathology, School of Basic Medical Sciences, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China.
| | - Faming Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China; The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China.
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9
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Lei Y, Klionsky DJ. Transcriptional regulation of autophagy and its implications in human disease. Cell Death Differ 2023; 30:1416-1429. [PMID: 37045910 PMCID: PMC10244319 DOI: 10.1038/s41418-023-01162-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 03/27/2023] [Accepted: 03/29/2023] [Indexed: 04/14/2023] Open
Abstract
Macroautophagy/autophagy is a conserved catabolic pathway that is vital for maintaining cell homeostasis and promoting cell survival under stressful conditions. Dysregulation of autophagy is associated with a variety of human diseases, such as cancer, neurodegenerative diseases, and metabolic disorders. Therefore, this pathway must be precisely regulated at multiple levels, involving epigenetic, transcriptional, post-transcriptional, translational, and post-translational mechanisms, to prevent inappropriate autophagy activity. In this review, we focus on autophagy regulation at the transcriptional level, summarizing the transcription factors that control autophagy gene expression in both yeast and mammalian cells. Because the expression and/or subcellular localization of some autophagy transcription factors are altered in certain diseases, we also discuss how changes in transcriptional regulation of autophagy are associated with human pathophysiologies.
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Affiliation(s)
- Yuchen Lei
- Life Sciences Institute and Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Daniel J Klionsky
- Life Sciences Institute and Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA.
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10
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Ojeda ML, Nogales F, Carreras O, Pajuelo E, Gallego-López MDC, Romero-Herrera I, Begines B, Moreno-Fernández J, Díaz-Castro J, Alcudia A. Different Effects of Low Selenite and Selenium-Nanoparticle Supplementation on Adipose Tissue Function and Insulin Secretion in Adolescent Male Rats. Nutrients 2022; 14:nu14173571. [PMID: 36079831 PMCID: PMC9459699 DOI: 10.3390/nu14173571] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/20/2022] [Accepted: 08/26/2022] [Indexed: 11/23/2022] Open
Abstract
Adolescence is a period of intense growth and endocrine changes, and obesity and insulin-resistance processes during this period have lately been rising. Selenium (Se) homeostasis is related to lipid metabolism depending on the form and dose of Se. This study tests the actions of low-dose selenite and Se nanoparticles (SeNPs) on white (WAT) and brown adipose tissue (BAT) deposition, insulin secretion, and GPx1, IRS-1 and FOXO3a expression in the WAT of adolescent rats as regards oxidative stress, adipocyte length and adipokine secretion. Four groups of male adolescent rats were treated: control (C), low selenite supplementation (S), low SeNP supplementation (NS) and moderate SeNP supplementation (NSS). Supplementation was received orally through water intake; NS and NSS rats received two- and tenfold more Se than C animals, respectively. SeNPs were obtained by reducing Se tetrachloride in the presence of ascorbic acid. For the first time in vivo, it was demonstrated that low selenite supplementation contributed to increased adipogenesis via the insulin signaling pathway and LCN2 modulation, while low SeNP administration prevented fat depots in WAT via the decrease in insulin signaling and FOXO3a autophagy in WAT, lowering inflammation. These effects were independent of GPx1 expression or activity in WAT. These findings provide data for dietary approaches to prevent obesity and/or anorexia during adolescence. These findings may be relevant to future studies looking at a nutritional approach aimed at pre-venting obesity and/or anorexia in adolescence.
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Affiliation(s)
- María Luisa Ojeda
- Department of Physiology, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain
| | - Fátima Nogales
- Department of Physiology, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain
- Correspondence: ; Tel.: +34-954556518
| | - Olimpia Carreras
- Department of Physiology, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain
| | - Eloísa Pajuelo
- Department of Microbiology and Parasitology, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain
| | | | - Inés Romero-Herrera
- Department of Physiology, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain
| | - Belén Begines
- Department of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain
| | - Jorge Moreno-Fernández
- Department of Physiology, University of Granada, 18071 Granada, Spain
- Institute of Nutrition and Food Technology “José Mataix Verdú”, University of Granada, 18071 Granada, Spain
| | - Javier Díaz-Castro
- Department of Physiology, University of Granada, 18071 Granada, Spain
- Institute of Nutrition and Food Technology “José Mataix Verdú”, University of Granada, 18071 Granada, Spain
| | - Ana Alcudia
- Department of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Seville, 41012 Seville, Spain
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11
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Greenwood EK, Angelova DM, Büchner HMI, Brown DR. The AICD fragment of APP initiates a FoxO3a mediated response via FANCD2. Mol Cell Neurosci 2022; 122:103760. [PMID: 35901928 DOI: 10.1016/j.mcn.2022.103760] [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: 06/10/2022] [Revised: 07/11/2022] [Accepted: 07/21/2022] [Indexed: 11/18/2022] Open
Abstract
The amyloid precursor protein (APP) is a cell surface protein of uncertain function that is notable for being the parent protein of beta-amyloid. Research around this protein has focussed heavily on the link to Alzheimer's disease and neurodegeneration. However, there is increasing evidence that APP may be linked to neuronal loss through mechanisms independent of beta-amyloid. FoxO3a is a transcription factor associated with neuronal longevity and apoptosis. In neurons, FoxO3a is associated with cell death through pathways that include BIM, a BCL-2 family member. In this study we have shown that APP overexpression increased the cellular levels and activity of FoxO3a. This increased expression and activity is not a result of decreased phosphorylation but is more likely a result of increased nuclear stability due to increased levels of FANCD2, a binding partner of FoxO3a. The changes caused by APP overexpression were shown to be due to the AICD fragment of APP possibly directly inducing transcription increase in FANCD2. These findings strengthen the link between APP metabolism and FoxO3a neuronal activity. This link may be crucial in better understanding the cellular role of APP and its link to neurodegeneration and aging.
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Affiliation(s)
| | | | | | - David R Brown
- Department of Life Sciences, University of Bath, Bath BA2 7AY, UK.
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12
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Zhang DG, Zhao T, Xu XJ, Xu YH, Wei XL, Jiang M, Luo Z. Selenoprotein F (SELENOF)-mediated AKT1-FOXO3a-PYGL axis contributes to selenium supranutrition-induced glycogenolysis and lipogenesis. BIOCHIMICA ET BIOPHYSICA ACTA. GENE REGULATORY MECHANISMS 2022; 1865:194814. [PMID: 35439639 DOI: 10.1016/j.bbagrm.2022.194814] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/27/2022] [Accepted: 04/07/2022] [Indexed: 06/14/2023]
Abstract
Mounting evidence showed that excess selenium (10.0-15.0-fold of adequate Se) intake caused severe hepatic lipid deposition in the vertebrate. However, the underlying mechanism remains unclear. The study was performed to elucidate the mechanism of Se supranutrition mediated-changes of lipid deposition and metabolism. We found that dietary excessive Se addition increased hepatic TGs and glucose contents, up-regulated lipogenic enzyme activities and reduced hepatic glycogen contents. Transcriptomic and immunoblotting analysis showed that Se supranutrition significantly influenced serine/threonine kinase 1 (AKT1)-forkhead box O3a (FOXO3a)-PYGL signaling and protein levels of SELENOF. Knockdown of SELENOF and PYGL by RNA interference revealed that the AKT1-FOXO3a-PYGL axis was critical for Se supranutrition-induced lipid accumulation. Moreover, Se supranutrition-induced lipid accumulation was via the increased DNA binding capacity of FOXO3a to PYGL promoter, which increased glycogenolysis, and accordingly promoted lipogenesis and lipid accumulation. Our finding provides new insight into the mechanism of Se supranutrition-induced lipid accumulation and suggests that SELENOF may be a therapeutic target for Se supranutrition induced-lipid disorders in the vertebrates.
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Affiliation(s)
- Dian-Guang Zhang
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Tao Zhao
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiao-Jian Xu
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Yi-Huan Xu
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiao-Lei Wei
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Fishery College, Huazhong Agricultural University, Wuhan 430070, China
| | - Ming Jiang
- Fish Nutrition and Feed Division, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
| | - Zhi Luo
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Fishery College, Huazhong Agricultural University, Wuhan 430070, China; Hubei Hongshan Laboratory, Wuhan 430070, China.
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13
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Liu L, Xu S, Li P, Li L. A novel adipokine WISP1 attenuates lipopolysaccharide-induced cell injury in 3T3-L1 adipocytes by regulating the PI3K/Akt pathway. Obes Res Clin Pract 2022; 16:122-129. [PMID: 35431155 DOI: 10.1016/j.orcp.2022.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 02/07/2022] [Accepted: 03/15/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND To study the effect of WISP1 on lipopolysaccharide (LPS)-induced cell injury in 3T3-L1 adipocytes. METHOD Lentivirus was transiently transfected into log phase 3T3-L1 adipocytes, which were then treated with LPS at a concentration of 10 μg/mL for 24 h. The cells were divided into the following groups: group A (control, untreated cells); group B (LPS-treated cells); group C (GFP), cells transfected with lentivirus-containing GFP; group D (GFP+LPS), group C treated with LPS;group E (WISP1OE), cells transfected with lentivirus, group F (shNC+LPS), cells transfected with lentivirus-containing nshRNA treated with LPS; group G (shWISP1 +LPS), cells transfected with lentivirus-containing shRNA treated with LPS; group H (WISP1OE+LPS), group E treated with LPS; group I (WISP1OE+LPS+LY294002), group E treated with LPS followed by LY294002 for 24 h. RESULTS WISP1 overexpression notably ameliorated cell apoptosis, accompanied with the increased expression of bcl-2, the decreased expressions of bax and cleaved-caspase-3, and promoted the release of inflammatory factors, such as tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) in LPS-treated 3T3-L1 adipocytes. WISP1 knockdown exhibited the opposite results. In addition, WISP1 stimulated Akt phosphorylation and reduced nuclear translocation of Fork head box protein O3 (FoxO3a) in 3T3-L1 adipocytes treated by LPS. The inhibition of the PI3K/Akt signaling pathway diminished the protective effect of WISP1. CONCLUSION WISP1 prevents 3T3-L1 adipocytes from being injured by LPS by regulating the PI3K/Akt pathway.
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Affiliation(s)
- Lichao Liu
- Department of Endocrinology, The Second Hospital of Dalian Medical University, Dalian 116027, Liaoning, China
| | - Shiting Xu
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning, China
| | - Ping Li
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning, China.
| | - Ling Li
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning, China.
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14
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Kim J, Mondaca-Ruff D, Singh S, Wang Y. SIRT1 and Autophagy: Implications in Endocrine Disorders. Front Endocrinol (Lausanne) 2022; 13:930919. [PMID: 35909524 PMCID: PMC9331929 DOI: 10.3389/fendo.2022.930919] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 06/20/2022] [Indexed: 11/26/2022] Open
Abstract
Autophagy is a cellular process involved in the selective degradation and recycling of dysfunctional intracellular components. It plays a crucial role in maintaining cellular homeostasis and survival by removing damaged and harmful proteins, lipids, and organelles. SIRT1, an NAD+-dependent multifunctional enzyme, is a key regulator of the autophagy process. Through its deacetylase activity, SIRT1 participates in the regulation of different steps of autophagy, from initiation to degradation. The levels and function of SIRT1 are also regulated by the autophagy process. Dysregulation in SIRT1-mediated autophagy hinders the proper functioning of the endocrine system, contributing to the onset and progression of endocrine disorders. This review provides an overview of the crosstalk between SIRT1 and autophagy and their implications in obesity, type-2 diabetes mellitus, diabetic cardiomyopathy, and hepatic steatosis.
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15
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Yasuzawa T, Nakamura T, Ueshima S, Mima A. Protective Effects of Eicosapentaenoic Acid on the Glomerular Endothelium via Inhibition of EndMT in Diabetes. J Diabetes Res 2021; 2021:2182225. [PMID: 34977254 PMCID: PMC8720008 DOI: 10.1155/2021/2182225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 11/29/2021] [Accepted: 11/30/2021] [Indexed: 12/11/2022] Open
Abstract
Diabetes-induced endothelial pathologies are hypothesized to lead to the progression of diabetic kidney disease (DKD). The endothelial to mesenchymal transition (EndMT) possibly induces fibrosis, leading to glomerulosclerosis in the kidney. Furthermore, this could lead to albuminuria in diabetic nephropathy due to glomerular endothelial dysfunction. Eicosapentaenoic acid (EPA), purified from fish oil, decreases inflammatory cytokine levels in glomerulonephritis. Here, we aimed at finding whether ethyl eicosapentaenoate (EPA-E) exerts renal protective effects via EndMT inhibition. To find out whether EPA inhibits EndMT in vitro, the changes in CD31 expression were studied in cultured mouse endothelial cells. The addition of the conditioned medium from the adipocyte culture significantly decreased the protein levels of CD31, while the addition of EPA-E partially reversed this inhibition. Further, EndMT inhibition by EPA-E treatment might occur via the inhibition of the protein kinase Cβ (PKCβ)/transforming growth factor-β (TGF-β)/plasminogen activator inhibitor-1 (PAI-1) signaling and not via microRNAs. Streptozotocin-induced diabetic mice fed a high-fat diet (60% from fat) exhibited mesangial expansion and albuminuria. Induction of EPA-E ameliorated the mesangial expansion and decreased albuminuria without affecting blood pressure, triglyceride and free fatty acid levels, and intraperitoneal glucose. These findings suggest that EPA-E exerts renal protective effects on endothelial cells, by normalizing EndMT followed by the PKCβ/TGF-β/PAI-1 signaling. Thus, EPA-E has the potential for imparting renal protection by regulating EndMT in DKD.
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Affiliation(s)
- Toshinori Yasuzawa
- Department of Nephrology, Osaka Medical and Pharmaceutical University, Osaka, Japan
- Department of Food Science and Nutrition, Faculty of Agriculture, Kindai University, Nara, Japan
- Department of Health and Nutrition, Faculty of Health Science, Kio University, Nara, Japan
| | - Tomomi Nakamura
- Department of Food Science and Nutrition, Faculty of Agriculture, Kindai University, Nara, Japan
| | - Shigeru Ueshima
- Department of Food Science and Nutrition, Faculty of Agriculture, Kindai University, Nara, Japan
| | - Akira Mima
- Department of Nephrology, Osaka Medical and Pharmaceutical University, Osaka, Japan
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